37725081 has 8 divisors (see below), whose sum is σ = 50465184. Its totient is φ = 25067520.

The previous prime is 37725073. The next prime is 37725139. The reversal of 37725081 is 18052773.

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

It is not a de Polignac number, because 37725081 - 2³ = 37725073 is a prime.

It is a super-2 number, since 2×37725081² = 2846363472913122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (37725001) 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, 19560 + ... + 21401.

It is an arithmetic number, because the mean of its divisors is an integer number (6308148).

Almost surely, 2^37725081 is an apocalyptic number.

It is an amenable number.

37725081 is a deficient number, since it is larger than the sum of its proper divisors (12740103).

37725081 is a wasteful number, since it uses less digits than its factorization.

37725081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41271.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 37725081 is about 6142.0746494975. The cubic root of 37725081 is about 335.3848136069.

The spelling of 37725081 in words is "thirty-seven million, seven hundred twenty-five thousand, eighty-one".