75526913 has 32 divisors (see below), whose sum is σ = 97044480. Its totient is φ = 57087360.

The previous prime is 75526909. The next prime is 75526931. The reversal of 75526913 is 31962557.

It is a happy number.

It is not a de Polignac number, because 75526913 - 2² = 75526909 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75526613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 705806 + ... + 705912.

It is an arithmetic number, because the mean of its divisors is an integer number (3032640).

Almost surely, 2^75526913 is an apocalyptic number.

It is an amenable number.

75526913 is a deficient number, since it is larger than the sum of its proper divisors (21517567).

75526913 is a wasteful number, since it uses less digits than its factorization.

75526913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317.

The product of its digits is 56700, while the sum is 38.

The square root of 75526913 is about 8690.6221296292. The cubic root of 75526913 is about 422.7016191638.

The spelling of 75526913 in words is "seventy-five million, five hundred twenty-six thousand, nine hundred thirteen".