5661935257 has 12 divisors (see below), whose sum is σ = 6264938448. Its totient is φ = 5074668200.

The previous prime is 5661935243. The next prime is 5661935309. The reversal of 5661935257 is 7525391665.

It is a happy number.

It is not a de Polignac number, because 5661935257 - 2¹¹ = 5661933209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5661935257.

It is not an unprimeable number, because it can be changed into a prime (5661935557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4398 + ... + 106504.

It is an arithmetic number, because the mean of its divisors is an integer number (522078204).

Almost surely, 2^5661935257 is an apocalyptic number.

It is an amenable number.

5661935257 is a deficient number, since it is larger than the sum of its proper divisors (603003191).

5661935257 is a wasteful number, since it uses less digits than its factorization.

5661935257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102260 (or 102189 counting only the distinct ones).

The product of its digits is 1701000, while the sum is 49.

The square root of 5661935257 is about 75245.8321570039. The cubic root of 5661935257 is about 1782.3307489975.

The spelling of 5661935257 in words is "five billion, six hundred sixty-one million, nine hundred thirty-five thousand, two hundred fifty-seven".