72806025 has 12 divisors (see below), whose sum is σ = 120372752. Its totient is φ = 38829840.

The previous prime is 72806003. The next prime is 72806029. The reversal of 72806025 is 52060827.

It is not a de Polignac number, because 72806025 - 2⁸ = 72805769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72805983 and 72806001.

It is not an unprimeable number, because it can be changed into a prime (72806029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 485299 + ... + 485448.

Almost surely, 2^72806025 is an apocalyptic number.

72806025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

72806025 is a deficient number, since it is larger than the sum of its proper divisors (47566727).

72806025 is a wasteful number, since it uses less digits than its factorization.

72806025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970760 (or 970755 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 72806025 is about 8532.6446662216. The cubic root of 72806025 is about 417.5634144175.

The spelling of 72806025 in words is "seventy-two million, eight hundred six thousand, twenty-five".