53901965 has 16 divisors (see below), whose sum is σ = 70177968. Its totient is φ = 39507456.

The previous prime is 53901929. The next prime is 53901973. The reversal of 53901965 is 56910935.

It can be written as a sum of positive squares in 8 ways, for example, as 11417641 + 42484324 = 3379^2 + 6518^2 .

It is a cyclic number.

It is not a de Polignac number, because 53901965 - 2¹² = 53897869 is a prime.

It is a super-2 number, since 2×53901965² = 5810843661722450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5879 + ... + 11931.

It is an arithmetic number, because the mean of its divisors is an integer number (4386123).

Almost surely, 2^53901965 is an apocalyptic number.

It is an amenable number.

53901965 is a deficient number, since it is larger than the sum of its proper divisors (16276003).

53901965 is a wasteful number, since it uses less digits than its factorization.

53901965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6208.

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 53901965 is about 7341.7957612562. The cubic root of 53901965 is about 377.7474424091.

The spelling of 53901965 in words is "fifty-three million, nine hundred one thousand, nine hundred sixty-five".