52724829977621 has 2 divisors, whose sum is σ = 52724829977622. Its totient is φ = 52724829977620.

The previous prime is 52724829977549. The next prime is 52724829977669. The reversal of 52724829977621 is 12677992842725.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45503861379025 + 7220968598596 = 6745655^2 + 2687186^2 .

It is a cyclic number.

It is not a de Polignac number, because 52724829977621 - 2⁴² = 48326783466517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52724829977021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26362414988810 + 26362414988811.

It is an arithmetic number, because the mean of its divisors is an integer number (26362414988811).

Almost surely, 2^{52724829977621} is an apocalyptic number.

It is an amenable number.

52724829977621 is a deficient number, since it is larger than the sum of its proper divisors (1).

52724829977621 is an equidigital number, since it uses as much as digits as its factorization.

52724829977621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 426746880, while the sum is 71.

The spelling of 52724829977621 in words is "fifty-two trillion, seven hundred twenty-four billion, eight hundred twenty-nine million, nine hundred seventy-seven thousand, six hundred twenty-one".