64042475 has 24 divisors (see below), whose sum is σ = 91140000. Its totient is φ = 43729920.

The previous prime is 64042471. The next prime is 64042477. The reversal of 64042475 is 57424046.

It is not a de Polignac number, because 64042475 - 2² = 64042471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64042471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50651 + ... + 51899.

It is an arithmetic number, because the mean of its divisors is an integer number (3797500).

Almost surely, 2^64042475 is an apocalyptic number.

64042475 is a deficient number, since it is larger than the sum of its proper divisors (27097525).

64042475 is a wasteful number, since it uses less digits than its factorization.

64042475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559 (or 1554 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 64042475 is about 8002.6542471857. The cubic root of 64042475 is about 400.0884700145.

The spelling of 64042475 in words is "sixty-four million, forty-two thousand, four hundred seventy-five".