53091031 has 8 divisors (see below), whose sum is σ = 61530624. Its totient is φ = 44865240.

The previous prime is 53091029. The next prime is 53091037. The reversal of 53091031 is 13019035.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53091031 - 2¹ = 53091029 is a prime.

It is a super-2 number, since 2×53091031² = 5637315145285922, 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 = 53090993 and 53091011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53091037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52915 + ... + 53908.

It is an arithmetic number, because the mean of its divisors is an integer number (7691328).

Almost surely, 2^53091031 is an apocalyptic number.

53091031 is a deficient number, since it is larger than the sum of its proper divisors (8439593).

53091031 is a wasteful number, since it uses less digits than its factorization.

53091031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106901.

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 53091031 is about 7286.3592417613. The cubic root of 53091031 is about 375.8435080434.

The spelling of 53091031 in words is "fifty-three million, ninety-one thousand, thirty-one".