61275685 has 16 divisors (see below), whose sum is σ = 77345280. Its totient is φ = 46537920.

The previous prime is 61275677. The next prime is 61275743. The reversal of 61275685 is 58657216.

It is not a de Polignac number, because 61275685 - 2³ = 61275677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4486 + ... + 11944.

It is an arithmetic number, because the mean of its divisors is an integer number (4834080).

Almost surely, 2^61275685 is an apocalyptic number.

It is an amenable number.

61275685 is a deficient number, since it is larger than the sum of its proper divisors (16069595).

61275685 is a wasteful number, since it uses less digits than its factorization.

61275685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7548.

The product of its digits is 100800, while the sum is 40.

The square root of 61275685 is about 7827.8787037102. The cubic root of 61275685 is about 394.2418507918.

The spelling of 61275685 in words is "sixty-one million, two hundred seventy-five thousand, six hundred eighty-five".