725149580531 has 2 divisors, whose sum is σ = 725149580532. Its totient is φ = 725149580530.

The previous prime is 725149580527. The next prime is 725149580537. The reversal of 725149580531 is 135085941527.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 725149580531 - 2² = 725149580527 is a prime.

It is a super-2 number, since 2×725149580531² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 725149580531.

It is not a weakly prime, because it can be changed into another prime (725149580537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362574790265 + 362574790266.

It is an arithmetic number, because the mean of its divisors is an integer number (362574790266).

Almost surely, 2^725149580531 is an apocalyptic number.

725149580531 is a deficient number, since it is larger than the sum of its proper divisors (1).

725149580531 is an equidigital number, since it uses as much as digits as its factorization.

725149580531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512000, while the sum is 50.

The spelling of 725149580531 in words is "seven hundred twenty-five billion, one hundred forty-nine million, five hundred eighty thousand, five hundred thirty-one".