53131577 has 2 divisors, whose sum is σ = 53131578. Its totient is φ = 53131576.

The previous prime is 53131571. The next prime is 53131591. The reversal of 53131577 is 77513135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42562576 + 10569001 = 6524^2 + 3251^2 .

It is a cyclic number.

It is not a de Polignac number, because 53131577 - 2⁸ = 53131321 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53131571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26565788 + 26565789.

It is an arithmetic number, because the mean of its divisors is an integer number (26565789).

Almost surely, 2^53131577 is an apocalyptic number.

It is an amenable number.

53131577 is a deficient number, since it is larger than the sum of its proper divisors (1).

53131577 is an equidigital number, since it uses as much as digits as its factorization.

53131577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11025, while the sum is 32.

The square root of 53131577 is about 7289.1410330710. The cubic root of 53131577 is about 375.9391618218.

The spelling of 53131577 in words is "fifty-three million, one hundred thirty-one thousand, five hundred seventy-seven".