52521632 has 12 divisors (see below), whose sum is σ = 103402026. Its totient is φ = 26260800.

The previous prime is 52521631. The next prime is 52521647. The reversal of 52521632 is 23612525.

It can be written as a sum of positive squares in only one way, i.e., 31764496 + 20757136 = 5636^2 + 4556^2 .

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (52521631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820619 + ... + 820682.

Almost surely, 2^52521632 is an apocalyptic number.

It is an amenable number.

52521632 is a deficient number, since it is larger than the sum of its proper divisors (50880394).

52521632 is a wasteful number, since it uses less digits than its factorization.

52521632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641311 (or 1641303 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 52521632 is about 7247.1809691769. The cubic root of 52521632 is about 374.4950406443.

The spelling of 52521632 in words is "fifty-two million, five hundred twenty-one thousand, six hundred thirty-two".