53646331 has 2 divisors, whose sum is σ = 53646332. Its totient is φ = 53646330.

The previous prime is 53646289. The next prime is 53646343. The reversal of 53646331 is 13364635.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53646331 is a prime.

It is a super-2 number, since 2×53646331² = 5755857659523122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53646293 and 53646302.

It is not a weakly prime, because it can be changed into another prime (53646371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26823165 + 26823166.

It is an arithmetic number, because the mean of its divisors is an integer number (26823166).

Almost surely, 2^53646331 is an apocalyptic number.

53646331 is a deficient number, since it is larger than the sum of its proper divisors (1).

53646331 is an equidigital number, since it uses as much as digits as its factorization.

53646331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 31.

The square root of 53646331 is about 7324.3655697951. The cubic root of 53646331 is about 377.1493309498.

The spelling of 53646331 in words is "fifty-three million, six hundred forty-six thousand, three hundred thirty-one".