7152552 has 72 divisors (see below), whose sum is σ = 21318570. Its totient is φ = 2164800.

The previous prime is 7152547. The next prime is 7152557. The reversal of 7152552 is 2552517.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7152547) and next prime (7152557).

It can be written as a sum of positive squares in only one way, i.e., 6625476 + 527076 = 2574^2 + 726^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×7152552² = 102318000225408, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (7152557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8302 + ... + 9122.

Almost surely, 2^7152552 is an apocalyptic number.

7152552 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7152552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10659285).

7152552 is an abundant number, since it is smaller than the sum of its proper divisors (14166018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7152552 is a wasteful number, since it uses less digits than its factorization.

7152552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855 (or 837 counting only the distinct ones).

The product of its digits is 3500, while the sum is 27.

The square root of 7152552 is about 2674.4255457948. The cubic root of 7152552 is about 192.6727700614.

The spelling of 7152552 in words is "seven million, one hundred fifty-two thousand, five hundred fifty-two".