37725461 has 4 divisors (see below), whose sum is σ = 37861932. Its totient is φ = 37588992.

The previous prime is 37725449. The next prime is 37725473. The reversal of 37725461 is 16452773.

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

It is an interprime number because it is at equal distance from previous prime (37725449) and next prime (37725473).

It can be written as a sum of positive squares in 2 ways, for example, as 3724900 + 34000561 = 1930^2 + 5831^2 .

It is a cyclic number.

It is not a de Polignac number, because 37725461 - 2¹⁰ = 37724437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37725361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67820 + ... + 68373.

It is an arithmetic number, because the mean of its divisors is an integer number (9465483).

Almost surely, 2^37725461 is an apocalyptic number.

It is an amenable number.

37725461 is a deficient number, since it is larger than the sum of its proper divisors (136471).

37725461 is a wasteful number, since it uses less digits than its factorization.

37725461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136470.

The product of its digits is 35280, while the sum is 35.

The square root of 37725461 is about 6142.1055835926. The cubic root of 37725461 is about 335.3859396995.

The spelling of 37725461 in words is "thirty-seven million, seven hundred twenty-five thousand, four hundred sixty-one".