51534532 has 12 divisors (see below), whose sum is σ = 103069120. Its totient is φ = 22086216.

The previous prime is 51534523. The next prime is 51534541. The reversal of 51534532 is 23543515.

It is an interprime number because it is at equal distance from previous prime (51534523) and next prime (51534541).

51534532 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 1840519 = 51534532 / (5 + 1 + 5 + 3 + 4 + 5 + 3 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 51534532.

It is an unprimeable number.

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, 920232 + ... + 920287.

Almost surely, 2^51534532 is an apocalyptic number.

It is an amenable number.

51534532 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51534532 is a wasteful number, since it uses less digits than its factorization.

51534532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840530 (or 1840528 counting only the distinct ones).

The product of its digits is 9000, while the sum is 28.

The square root of 51534532 is about 7178.7556024704. The cubic root of 51534532 is about 372.1340808535.

The spelling of 51534532 in words is "fifty-one million, five hundred thirty-four thousand, five hundred thirty-two".