75472557 has 8 divisors (see below), whose sum is σ = 101570976. Its totient is φ = 49844592.

The previous prime is 75472549. The next prime is 75472567. The reversal of 75472557 is 75527457.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75472557 - 2³ = 75472549 is a prime.

It is a super-2 number, since 2×75472557² = 11392213720236498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75472517) 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, 117238 + ... + 117879.

It is an arithmetic number, because the mean of its divisors is an integer number (12696372).

Almost surely, 2^75472557 is an apocalyptic number.

It is an amenable number.

75472557 is a deficient number, since it is larger than the sum of its proper divisors (26098419).

75472557 is a wasteful number, since it uses less digits than its factorization.

75472557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235227.

The product of its digits is 343000, while the sum is 42.

The square root of 75472557 is about 8687.4942877679. The cubic root of 75472557 is about 422.6001900508.

The spelling of 75472557 in words is "seventy-five million, four hundred seventy-two thousand, five hundred fifty-seven".