75564501 has 8 divisors (see below), whose sum is σ = 106055520. Its totient is φ = 47724912.

The previous prime is 75564487. The next prime is 75564509. The reversal of 75564501 is 10546557.

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

It is not a de Polignac number, because 75564501 - 2⁹ = 75563989 is a prime.

It is a super-2 number, since 2×75564501² = 11419987622758002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75564509) 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, 662790 + ... + 662903.

It is an arithmetic number, because the mean of its divisors is an integer number (13256940).

Almost surely, 2^75564501 is an apocalyptic number.

It is an amenable number.

75564501 is a deficient number, since it is larger than the sum of its proper divisors (30491019).

75564501 is a wasteful number, since it uses less digits than its factorization.

75564501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325715.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 75564501 is about 8692.7844215763. The cubic root of 75564501 is about 422.7717304781.

It can be divided in two parts, 755 and 64501, that added together give a palindrome (65256).

The spelling of 75564501 in words is "seventy-five million, five hundred sixty-four thousand, five hundred one".