72525687 has 8 divisors (see below), whose sum is σ = 104139504. Its totient is φ = 44631168.

The previous prime is 72525659. The next prime is 72525707. The reversal of 72525687 is 78652527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72525687 - 2¹⁴ = 72509303 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72525617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 929778 + ... + 929855.

It is an arithmetic number, because the mean of its divisors is an integer number (13017438).

Almost surely, 2^72525687 is an apocalyptic number.

72525687 is a deficient number, since it is larger than the sum of its proper divisors (31613817).

72525687 is a wasteful number, since it uses less digits than its factorization.

72525687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859649.

The product of its digits is 235200, while the sum is 42.

The square root of 72525687 is about 8516.2014419576. The cubic root of 72525687 is about 417.0267854828.

The spelling of 72525687 in words is "seventy-two million, five hundred twenty-five thousand, six hundred eighty-seven".