51023532 has 24 divisors (see below), whose sum is σ = 136062976. Its totient is φ = 14578128.

The previous prime is 51023527. The next prime is 51023543. The reversal of 51023532 is 23532015.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 51023499 and 51023508.

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, 303628 + ... + 303795.

Almost surely, 2^51023532 is an apocalyptic number.

It is an amenable number.

51023532 is an abundant number, since it is smaller than the sum of its proper divisors (85039444).

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

51023532 is a wasteful number, since it uses less digits than its factorization.

51023532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607437 (or 607435 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 51023532 is about 7143.0758080816. The cubic root of 51023532 is about 370.9000052605.

Adding to 51023532 its reverse (23532015), we get a palindrome (74555547).

It can be divided in two parts, 510 and 23532, that added together give a palindrome (24042).

The spelling of 51023532 in words is "fifty-one million, twenty-three thousand, five hundred thirty-two".