64415252 has 12 divisors (see below), whose sum is σ = 122974656. Its totient is φ = 29279640.

The previous prime is 64415243. The next prime is 64415287. The reversal of 64415252 is 25251446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 731948 + ... + 732035.

It is an arithmetic number, because the mean of its divisors is an integer number (10247888).

Almost surely, 2^64415252 is an apocalyptic number.

It is an amenable number.

64415252 is a deficient number, since it is larger than the sum of its proper divisors (58559404).

64415252 is a wasteful number, since it uses less digits than its factorization.

64415252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463998 (or 1463996 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 64415252 is about 8025.9112878227. The cubic root of 64415252 is about 400.8632440176.

Adding to 64415252 its reverse (25251446), we get a palindrome (89666698).

The spelling of 64415252 in words is "sixty-four million, four hundred fifteen thousand, two hundred fifty-two".