64473252 has 12 divisors (see below), whose sum is σ = 150437616. Its totient is φ = 21491080.

The previous prime is 64473247. The next prime is 64473259. The reversal of 64473252 is 25237446.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (64473259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2686374 + ... + 2686397.

It is an arithmetic number, because the mean of its divisors is an integer number (12536468).

Almost surely, 2^64473252 is an apocalyptic number.

It is an amenable number.

64473252 is an abundant number, since it is smaller than the sum of its proper divisors (85964364).

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

64473252 is a wasteful number, since it uses less digits than its factorization.

64473252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5372778 (or 5372776 counting only the distinct ones).

The product of its digits is 40320, while the sum is 33.

The square root of 64473252 is about 8029.5237716816. The cubic root of 64473252 is about 400.9835213988.

The spelling of 64473252 in words is "sixty-four million, four hundred seventy-three thousand, two hundred fifty-two".