52151232 has 56 divisors (see below), whose sum is σ = 157699456. Its totient is φ = 14899968.

The previous prime is 52151201. The next prime is 52151233. The reversal of 52151232 is 23215125.

It is a tau number, because it is divible by the number of its divisors (56).

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 = 52151199 and 52151208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52151233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18058 + ... + 20745.

Almost surely, 2^52151232 is an apocalyptic number.

It is an amenable number.

52151232 is an abundant number, since it is smaller than the sum of its proper divisors (105548224).

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

52151232 is a wasteful number, since it uses less digits than its factorization.

52151232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38825 (or 38815 counting only the distinct ones).

The product of its digits is 600, while the sum is 21.

The square root of 52151232 is about 7221.5809903372. The cubic root of 52151232 is about 373.6126084941.

Adding to 52151232 its reverse (23215125), we get a palindrome (75366357).

It can be divided in two parts, 5215123 and 2, that added together give a palindrome (5215125).

The spelling of 52151232 in words is "fifty-two million, one hundred fifty-one thousand, two hundred thirty-two".