64265472 has 54 divisors (see below), whose sum is σ = 185299842. Its totient is φ = 21421056.

The previous prime is 64265471. The next prime is 64265503. The reversal of 64265472 is 27456246.

64265472 is a `hidden beast` number, since 642 + 6 + 5 + 4 + 7 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 64256256 + 9216 = 8016^2 + 96^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64265471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11643 + ... + 16250.

Almost surely, 2^64265472 is an apocalyptic number.

It is an amenable number.

64265472 is an abundant number, since it is smaller than the sum of its proper divisors (121034370).

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

64265472 is a wasteful number, since it uses less digits than its factorization.

64265472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27915 (or 27898 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 64265472 is about 8016.5748296888. The cubic root of 64265472 is about 400.5523037172.

It can be divided in two parts, 642 and 65472, that multiplied together give a palindrome (42033024).

The spelling of 64265472 in words is "sixty-four million, two hundred sixty-five thousand, four hundred seventy-two".