72606425 has 6 divisors (see below), whose sum is σ = 90031998. Its totient is φ = 58085120.

The previous prime is 72606419. The next prime is 72606431. The reversal of 72606425 is 52460627.

It is an interprime number because it is at equal distance from previous prime (72606419) and next prime (72606431).

It can be written as a sum of positive squares in 3 ways, for example, as 6086089 + 66520336 = 2467^2 + 8156^2 .

It is not a de Polignac number, because 72606425 - 2⁶ = 72606361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72606391 and 72606400.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1452104 + ... + 1452153.

It is an arithmetic number, because the mean of its divisors is an integer number (15005333).

Almost surely, 2^72606425 is an apocalyptic number.

It is an amenable number.

72606425 is a deficient number, since it is larger than the sum of its proper divisors (17425573).

72606425 is a wasteful number, since it uses less digits than its factorization.

72606425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904267 (or 2904262 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 72606425 is about 8520.9403823756. The cubic root of 72606425 is about 417.1814774435.

The spelling of 72606425 in words is "seventy-two million, six hundred six thousand, four hundred twenty-five".