53212487 has 2 divisors, whose sum is σ = 53212488. Its totient is φ = 53212486.

The previous prime is 53212469. The next prime is 53212529. The reversal of 53212487 is 78421235.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53212487 - 2⁸ = 53212231 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53212427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26606243 + 26606244.

It is an arithmetic number, because the mean of its divisors is an integer number (26606244).

Almost surely, 2^53212487 is an apocalyptic number.

53212487 is a deficient number, since it is larger than the sum of its proper divisors (1).

53212487 is an equidigital number, since it uses as much as digits as its factorization.

53212487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 32.

The square root of 53212487 is about 7294.6889584135. The cubic root of 53212487 is about 376.1298946674.

The spelling of 53212487 in words is "fifty-three million, two hundred twelve thousand, four hundred eighty-seven".