75449564 has 6 divisors (see below), whose sum is σ = 132036744. Its totient is φ = 37724780.

The previous prime is 75449509. The next prime is 75449593. The reversal of 75449564 is 46594457.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9431192 + ... + 9431199.

It is an arithmetic number, because the mean of its divisors is an integer number (22006124).

Almost surely, 2^75449564 is an apocalyptic number.

It is an amenable number.

75449564 is a deficient number, since it is larger than the sum of its proper divisors (56587180).

75449564 is a wasteful number, since it uses less digits than its factorization.

75449564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18862395 (or 18862393 counting only the distinct ones).

The product of its digits is 604800, while the sum is 44.

The square root of 75449564 is about 8686.1708479629. The cubic root of 75449564 is about 422.5572701097.

The spelling of 75449564 in words is "seventy-five million, four hundred forty-nine thousand, five hundred sixty-four".