61110657 has 6 divisors (see below), whose sum is σ = 88270962. Its totient is φ = 40740432.

The previous prime is 61110649. The next prime is 61110671. The reversal of 61110657 is 75601116.

61110657 is a `hidden beast` number, since 6 + 1 + 1 + 1 + 0 + 657 = 666.

It can be written as a sum of positive squares in only one way, i.e., 59582961 + 1527696 = 7719^2 + 1236^2 .

It is not a de Polignac number, because 61110657 - 2³ = 61110649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61110657.

It is not an unprimeable number, because it can be changed into a prime (61110617) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3395028 + ... + 3395045.

It is an arithmetic number, because the mean of its divisors is an integer number (14711827).

Almost surely, 2^61110657 is an apocalyptic number.

It is an amenable number.

61110657 is a deficient number, since it is larger than the sum of its proper divisors (27160305).

61110657 is a wasteful number, since it uses less digits than its factorization.

61110657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6790079 (or 6790076 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 61110657 is about 7817.3305546075. The cubic root of 61110657 is about 393.8876078367.

The spelling of 61110657 in words is "sixty-one million, one hundred ten thousand, six hundred fifty-seven".