53207732 has 12 divisors (see below), whose sum is σ = 93272676. Its totient is φ = 26558400.

The previous prime is 53207711. The next prime is 53207743. The reversal of 53207732 is 23770235.

It can be written as a sum of positive squares in 2 ways, for example, as 35952016 + 17255716 = 5996^2 + 4154^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53207695 and 53207704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8663 + ... + 13470.

It is an arithmetic number, because the mean of its divisors is an integer number (7772723).

Almost surely, 2^53207732 is an apocalyptic number.

It is an amenable number.

53207732 is a deficient number, since it is larger than the sum of its proper divisors (40064944).

53207732 is a wasteful number, since it uses less digits than its factorization.

53207732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22738 (or 22736 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 29.

The square root of 53207732 is about 7294.3630290794. The cubic root of 53207732 is about 376.1186908377.

Adding to 53207732 its reverse (23770235), we get a palindrome (76977967).

The spelling of 53207732 in words is "fifty-three million, two hundred seven thousand, seven hundred thirty-two".