75297152 has 64 divisors (see below), whose sum is σ = 180499200. Its totient is φ = 30564864.

The previous prime is 75297151. The next prime is 75297161. The reversal of 75297152 is 25179257.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×75297152² = 11339322198622208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75297151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14813 + ... + 19235.

It is an arithmetic number, because the mean of its divisors is an integer number (2820300).

Almost surely, 2^75297152 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 75297152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90249600).

75297152 is an abundant number, since it is smaller than the sum of its proper divisors (105202048).

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

75297152 is a wasteful number, since it uses less digits than its factorization.

75297152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4463 (or 4451 counting only the distinct ones).

The product of its digits is 44100, while the sum is 38.

The square root of 75297152 is about 8677.3931569337. The cubic root of 75297152 is about 422.2725491667.

The spelling of 75297152 in words is "seventy-five million, two hundred ninety-seven thousand, one hundred fifty-two".