51563532 has 24 divisors (see below), whose sum is σ = 120444016. Its totient is φ = 17169408.

The previous prime is 51563521. The next prime is 51563543. The reversal of 51563532 is 23536515.

It is an interprime number because it is at equal distance from previous prime (51563521) and next prime (51563543).

It is a self number, because there is not a number n which added to its sum of digits gives 51563532.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13908 + ... + 17220.

Almost surely, 2^51563532 is an apocalyptic number.

It is an amenable number.

51563532 is an abundant number, since it is smaller than the sum of its proper divisors (68880484).

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

51563532 is a wasteful number, since it uses less digits than its factorization.

51563532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4617 (or 4615 counting only the distinct ones).

The product of its digits is 13500, while the sum is 30.

The square root of 51563532 is about 7180.7751670694. The cubic root of 51563532 is about 372.2038713691.

The spelling of 51563532 in words is "fifty-one million, five hundred sixty-three thousand, five hundred thirty-two".