53115031 has 2 divisors, whose sum is σ = 53115032. Its totient is φ = 53115030.

The previous prime is 53114989. The next prime is 53115043. The reversal of 53115031 is 13051135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53115031 - 2⁷ = 53114903 is a prime.

It is a super-2 number, since 2×53115031² = 5642413036261922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53115071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26557515 + 26557516.

It is an arithmetic number, because the mean of its divisors is an integer number (26557516).

Almost surely, 2^53115031 is an apocalyptic number.

53115031 is a deficient number, since it is larger than the sum of its proper divisors (1).

53115031 is an equidigital number, since it uses as much as digits as its factorization.

53115031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 53115031 is about 7288.0059687133. The cubic root of 53115031 is about 375.9001333349.

Adding to 53115031 its reverse (13051135), we get a palindrome (66166166).

The spelling of 53115031 in words is "fifty-three million, one hundred fifteen thousand, thirty-one".