53642431247 has 2 divisors, whose sum is σ = 53642431248. Its totient is φ = 53642431246.

The previous prime is 53642431229. The next prime is 53642431327. The reversal of 53642431247 is 74213424635.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53642431247 - 2⁸ = 53642430991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53642431147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26821215623 + 26821215624.

It is an arithmetic number, because the mean of its divisors is an integer number (26821215624).

Almost surely, 2^53642431247 is an apocalyptic number.

53642431247 is a deficient number, since it is larger than the sum of its proper divisors (1).

53642431247 is an equidigital number, since it uses as much as digits as its factorization.

53642431247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 41.

The spelling of 53642431247 in words is "fifty-three billion, six hundred forty-two million, four hundred thirty-one thousand, two hundred forty-seven".