53662031 has 2 divisors, whose sum is σ = 53662032. Its totient is φ = 53662030.

The previous prime is 53662019. The next prime is 53662033. The reversal of 53662031 is 13026635.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53662031 is a prime.

It is a super-2 number, since 2×53662031² = 5759227142089922, which contains 22 as substring.

Together with 53662033, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53662033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26831015 + 26831016.

It is an arithmetic number, because the mean of its divisors is an integer number (26831016).

Almost surely, 2^53662031 is an apocalyptic number.

53662031 is a deficient number, since it is larger than the sum of its proper divisors (1).

53662031 is an equidigital number, since it uses as much as digits as its factorization.

53662031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 53662031 is about 7325.4372565738. The cubic root of 53662031 is about 377.1861192187.

Adding to 53662031 its reverse (13026635), we get a palindrome (66688666).

The spelling of 53662031 in words is "fifty-three million, six hundred sixty-two thousand, thirty-one".