725174933081 has 2 divisors, whose sum is σ = 725174933082. Its totient is φ = 725174933080.

The previous prime is 725174933053. The next prime is 725174933113. The reversal of 725174933081 is 180339471527.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 554846214400 + 170328718681 = 744880^2 + 412709^2 .

It is a cyclic number.

It is not a de Polignac number, because 725174933081 - 2¹⁰ = 725174932057 is a prime.

It is a super-2 number, since 2×725174933081² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (725174932081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362587466540 + 362587466541.

It is an arithmetic number, because the mean of its divisors is an integer number (362587466541).

Almost surely, 2^725174933081 is an apocalyptic number.

It is an amenable number.

725174933081 is a deficient number, since it is larger than the sum of its proper divisors (1).

725174933081 is an equidigital number, since it uses as much as digits as its factorization.

725174933081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The spelling of 725174933081 in words is "seven hundred twenty-five billion, one hundred seventy-four million, nine hundred thirty-three thousand, eighty-one".