53157427 has 2 divisors, whose sum is σ = 53157428. Its totient is φ = 53157426.

The previous prime is 53157367. The next prime is 53157431. The reversal of 53157427 is 72475135.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53157427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53157392 and 53157401.

It is not a weakly prime, because it can be changed into another prime (53157437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26578713 + 26578714.

It is an arithmetic number, because the mean of its divisors is an integer number (26578714).

Almost surely, 2^53157427 is an apocalyptic number.

53157427 is a deficient number, since it is larger than the sum of its proper divisors (1).

53157427 is an equidigital number, since it uses as much as digits as its factorization.

53157427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29400, while the sum is 34.

The square root of 53157427 is about 7290.9140030589. The cubic root of 53157427 is about 376.0001202467. Note that the first 3 decimals are identical.

The spelling of 53157427 in words is "fifty-three million, one hundred fifty-seven thousand, four hundred twenty-seven".