53689031 has 6 divisors (see below), whose sum is σ = 59013696. Its totient is φ = 48808100.

The previous prime is 53689019. The next prime is 53689033. The reversal of 53689031 is 13098635.

It is a de Polignac number, because none of the positive numbers 2^k-53689031 is a prime.

It is a super-2 number, since 2×53689031² = 5765024099437922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53688982 and 53689000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53689033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 221735 + ... + 221976.

It is an arithmetic number, because the mean of its divisors is an integer number (9835616).

Almost surely, 2^53689031 is an apocalyptic number.

53689031 is a deficient number, since it is larger than the sum of its proper divisors (5324665).

53689031 is a wasteful number, since it uses less digits than its factorization.

53689031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443733 (or 443722 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 53689031 is about 7327.2799182234. The cubic root of 53689031 is about 377.2493688913.

The spelling of 53689031 in words is "fifty-three million, six hundred eighty-nine thousand, thirty-one".