7545272 has 32 divisors (see below), whose sum is σ = 16417920. Its totient is φ = 3183840.

The previous prime is 7545269. The next prime is 7545277. The reversal of 7545272 is 2725457.

It is a super-2 number, since 2×7545272² = 113862259107968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7545277) 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 7 ways as a sum of consecutive naturals, for example, 2747 + ... + 4757.

It is an arithmetic number, because the mean of its divisors is an integer number (513060).

Almost surely, 2^7545272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7545272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8208960).

7545272 is an abundant number, since it is smaller than the sum of its proper divisors (8872648).

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

7545272 is a wasteful number, since it uses less digits than its factorization.

7545272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091 (or 2087 counting only the distinct ones).

The product of its digits is 19600, while the sum is 32.

The square root of 7545272 is about 2746.8658503829. The cubic root of 7545272 is about 196.1364453220.

The spelling of 7545272 in words is "seven million, five hundred forty-five thousand, two hundred seventy-two".