53151732 has 72 divisors (see below), whose sum is σ = 140404992. Its totient is φ = 16934400.

The previous prime is 53151719. The next prime is 53151757. The reversal of 53151732 is 23715135.

It is a super-2 number, since 2×53151732² = 5650213229199648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53151696 and 53151705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108007 + ... + 108497.

Almost surely, 2^53151732 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53151732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70202496).

53151732 is an abundant number, since it is smaller than the sum of its proper divisors (87253260).

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

53151732 is a wasteful number, since it uses less digits than its factorization.

53151732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629 (or 624 counting only the distinct ones).

The product of its digits is 3150, while the sum is 27.

The square root of 53151732 is about 7290.5234379981. The cubic root of 53151732 is about 375.9866922255.

Adding to 53151732 its reverse (23715135), we get a palindrome (76866867).

The spelling of 53151732 in words is "fifty-three million, one hundred fifty-one thousand, seven hundred thirty-two".