64524402 has 12 divisors (see below), whose sum is σ = 139802910. Its totient is φ = 21508128.

The previous prime is 64524389. The next prime is 64524413. The reversal of 64524402 is 20442546.

It can be written as a sum of positive squares in only one way, i.e., 53890281 + 10634121 = 7341^2 + 3261^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1792327 + ... + 1792362.

Almost surely, 2^64524402 is an apocalyptic number.

64524402 is an abundant number, since it is smaller than the sum of its proper divisors (75278508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64524402 is a wasteful number, since it uses less digits than its factorization.

64524402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3584697 (or 3584694 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 64524402 is about 8032.7082606055. The cubic root of 64524402 is about 401.0895337626.

Adding to 64524402 its reverse (20442546), we get a palindrome (84966948).

The spelling of 64524402 in words is "sixty-four million, five hundred twenty-four thousand, four hundred two".