72449488025 has 12 divisors (see below), whose sum is σ = 91310110764. Its totient is φ = 57009432000.

The previous prime is 72449488019. The next prime is 72449488051. The reversal of 72449488025 is 52088494427.

It can be written as a sum of positive squares in 6 ways, for example, as 29157611536 + 43291876489 = 170756^2 + 208067^2 .

It is not a de Polignac number, because 72449488025 - 2⁸ = 72449487769 is a prime.

It is a super-3 number, since 3×72449488025³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23752406 + ... + 23755455.

It is an arithmetic number, because the mean of its divisors is an integer number (7609175897).

Almost surely, 2^72449488025 is an apocalyptic number.

It is an amenable number.

72449488025 is a deficient number, since it is larger than the sum of its proper divisors (18860622739).

72449488025 is a wasteful number, since it uses less digits than its factorization.

72449488025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47507932 (or 47507927 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 53.

The spelling of 72449488025 in words is "seventy-two billion, four hundred forty-nine million, four hundred eighty-eight thousand, twenty-five".