64475542 has 4 divisors (see below), whose sum is σ = 96713316. Its totient is φ = 32237770.

The previous prime is 64475519. The next prime is 64475561. The reversal of 64475542 is 24557446.

It is a semiprime because it is the product of two primes.

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, 16118884 + ... + 16118887.

It is an arithmetic number, because the mean of its divisors is an integer number (24178329).

Almost surely, 2^64475542 is an apocalyptic number.

64475542 is a deficient number, since it is larger than the sum of its proper divisors (32237774).

64475542 is a wasteful number, since it uses less digits than its factorization.

64475542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32237773.

The product of its digits is 134400, while the sum is 37.

The square root of 64475542 is about 8029.6663691588. Note that the first 3 decimals coincide. The cubic root of 64475542 is about 400.9882688011.

The spelling of 64475542 in words is "sixty-four million, four hundred seventy-five thousand, five hundred forty-two".