30725057564623 has 2 divisors, whose sum is σ = 30725057564624. Its totient is φ = 30725057564622.

The previous prime is 30725057564609. The next prime is 30725057564651. The reversal of 30725057564623 is 32646575052703.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30725057564623 is a prime.

It is a super-2 number, since 2×30725057564623² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30725057564693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15362528782311 + 15362528782312.

It is an arithmetic number, because the mean of its divisors is an integer number (15362528782312).

Almost surely, 2^{30725057564623} is an apocalyptic number.

30725057564623 is a deficient number, since it is larger than the sum of its proper divisors (1).

30725057564623 is an equidigital number, since it uses as much as digits as its factorization.

30725057564623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752000, while the sum is 55.

The spelling of 30725057564623 in words is "thirty trillion, seven hundred twenty-five billion, fifty-seven million, five hundred sixty-four thousand, six hundred twenty-three".