51632260 has 12 divisors (see below), whose sum is σ = 108427788. Its totient is φ = 20652896.

The previous prime is 51632249. The next prime is 51632261. The reversal of 51632260 is 6223615.

It can be written as a sum of positive squares in 2 ways, for example, as 10876804 + 40755456 = 3298^2 + 6384^2 .

It is not an unprimeable number, because it can be changed into a prime (51632261) 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 3 ways as a sum of consecutive naturals, for example, 1290787 + ... + 1290826.

It is an arithmetic number, because the mean of its divisors is an integer number (9035649).

Almost surely, 2^51632260 is an apocalyptic number.

It is an amenable number.

51632260 is an abundant number, since it is smaller than the sum of its proper divisors (56795528).

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

51632260 is a wasteful number, since it uses less digits than its factorization.

51632260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581622 (or 2581620 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 51632260 is about 7185.5591292536. The cubic root of 51632260 is about 372.3691656491.

Adding to 51632260 its reverse (6223615), we get a palindrome (57855875).

The spelling of 51632260 in words is "fifty-one million, six hundred thirty-two thousand, two hundred sixty".