72719425 has 12 divisors (see below), whose sum is σ = 90506236. Its totient is φ = 57960000.

The previous prime is 72719419. The next prime is 72719431. The reversal of 72719425 is 52491727.

It is an interprime number because it is at equal distance from previous prime (72719419) and next prime (72719431).

It can be written as a sum of positive squares in 6 ways, for example, as 12439729 + 60279696 = 3527^2 + 7764^2 .

It is not a de Polignac number, because 72719425 - 2⁹ = 72718913 is a prime.

It is a super-2 number, since 2×72719425² = 10576229544661250, which contains 22 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 (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1675 + ... + 12175.

Almost surely, 2^72719425 is an apocalyptic number.

It is an amenable number.

72719425 is a deficient number, since it is larger than the sum of its proper divisors (17786811).

72719425 is a wasteful number, since it uses less digits than its factorization.

72719425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10788 (or 10783 counting only the distinct ones).

The product of its digits is 35280, while the sum is 37.

The square root of 72719425 is about 8527.5685280155. The cubic root of 72719425 is about 417.3977901278.

The spelling of 72719425 in words is "seventy-two million, seven hundred nineteen thousand, four hundred twenty-five".