53165908 has 6 divisors (see below), whose sum is σ = 93040346. Its totient is φ = 26582952.

The previous prime is 53165891. The next prime is 53165909. The reversal of 53165908 is 80956135.

It can be written as a sum of positive squares in only one way, i.e., 53027524 + 138384 = 7282^2 + 372^2 .

It is a super-2 number, since 2×53165908² = 5653227546928928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53165909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6645735 + ... + 6645742.

Almost surely, 2^53165908 is an apocalyptic number.

It is an amenable number.

53165908 is a deficient number, since it is larger than the sum of its proper divisors (39874438).

53165908 is a wasteful number, since it uses less digits than its factorization.

53165908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13291481 (or 13291479 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 53165908 is about 7291.4955941837. The cubic root of 53165908 is about 376.0201154924.

The spelling of 53165908 in words is "fifty-three million, one hundred sixty-five thousand, nine hundred eight".