53056291 has 4 divisors (see below), whose sum is σ = 53108784. Its totient is φ = 53003800.

The previous prime is 53056277. The next prime is 53056301. The reversal of 53056291 is 19265035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19265035 = 5 ⋅3853007.

It is a cyclic number.

It is not a de Polignac number, because 53056291 - 2⁵ = 53056259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53056231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24700 + ... + 26761.

It is an arithmetic number, because the mean of its divisors is an integer number (13277196).

Almost surely, 2^53056291 is an apocalyptic number.

53056291 is a deficient number, since it is larger than the sum of its proper divisors (52493).

53056291 is a wasteful number, since it uses less digits than its factorization.

53056291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52492.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 53056291 is about 7283.9749450420. The cubic root of 53056291 is about 375.7615126972.

The spelling of 53056291 in words is "fifty-three million, fifty-six thousand, two hundred ninety-one".