61566675 has 24 divisors (see below), whose sum is σ = 103088640. Its totient is φ = 32416800.

The previous prime is 61566649. The next prime is 61566683. The reversal of 61566675 is 57666516.

It is not a de Polignac number, because 61566675 - 2⁵ = 61566643 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 730 + ... + 11120.

It is an arithmetic number, because the mean of its divisors is an integer number (4295360).

Almost surely, 2^61566675 is an apocalyptic number.

61566675 is a deficient number, since it is larger than the sum of its proper divisors (41521965).

61566675 is a wasteful number, since it uses less digits than its factorization.

61566675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10483 (or 10478 counting only the distinct ones).

The product of its digits is 226800, while the sum is 42.

The square root of 61566675 is about 7846.4434618495. The cubic root of 61566675 is about 394.8649327230.

The spelling of 61566675 in words is "sixty-one million, five hundred sixty-six thousand, six hundred seventy-five".