53172352 has 16 divisors (see below), whose sum is σ = 105929550. Its totient is φ = 26586112.

The previous prime is 53172349. The next prime is 53172403. The reversal of 53172352 is 25327135.

It can be written as a sum of positive squares in only one way, i.e., 38241856 + 14930496 = 6184^2 + 3864^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 53172352.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207577 + ... + 207832.

Almost surely, 2^53172352 is an apocalyptic number.

It is an amenable number.

53172352 is a deficient number, since it is larger than the sum of its proper divisors (52757198).

53172352 is an equidigital number, since it uses as much as digits as its factorization.

53172352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415423 (or 415411 counting only the distinct ones).

The product of its digits is 6300, while the sum is 28.

The square root of 53172352 is about 7291.9374654477. The cubic root of 53172352 is about 376.0353067796.

Adding to 53172352 its reverse (25327135), we get a palindrome (78499487).

The spelling of 53172352 in words is "fifty-three million, one hundred seventy-two thousand, three hundred fifty-two".