75497538 has 16 divisors (see below), whose sum is σ = 155076480. Its totient is φ = 24485616.

The previous prime is 75497533. The next prime is 75497581. The reversal of 75497538 is 83579457.

It is a super-2 number, since 2×75497538² = 11399756488122888, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75497531) 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, 169818 + ... + 170261.

It is an arithmetic number, because the mean of its divisors is an integer number (9692280).

Almost surely, 2^75497538 is an apocalyptic number.

75497538 is an abundant number, since it is smaller than the sum of its proper divisors (79578942).

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

75497538 is a wasteful number, since it uses less digits than its factorization.

75497538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340121.

The product of its digits is 1058400, while the sum is 48.

The square root of 75497538 is about 8688.9319251563. The cubic root of 75497538 is about 422.6468110179.

The spelling of 75497538 in words is "seventy-five million, four hundred ninety-seven thousand, five hundred thirty-eight".