72525626 has 4 divisors (see below), whose sum is σ = 108788442. Its totient is φ = 36262812.

The previous prime is 72525619. The next prime is 72525631. The reversal of 72525626 is 62652527.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 69639025 + 2886601 = 8345^2 + 1699^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18131405 + ... + 18131408.

Almost surely, 2^72525626 is an apocalyptic number.

72525626 is a deficient number, since it is larger than the sum of its proper divisors (36262816).

72525626 is a wasteful number, since it uses less digits than its factorization.

72525626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36262815.

The product of its digits is 50400, while the sum is 35.

The square root of 72525626 is about 8516.1978605479. The cubic root of 72525626 is about 417.0266685649.

The spelling of 72525626 in words is "seventy-two million, five hundred twenty-five thousand, six hundred twenty-six".