55571716 has 12 divisors (see below), whose sum is σ = 100387840. Its totient is φ = 26889480.

The previous prime is 55571701. The next prime is 55571717. The reversal of 55571716 is 61717555.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (55571717) 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, 223956 + ... + 224203.

Almost surely, 2^55571716 is an apocalyptic number.

It is an amenable number.

55571716 is a deficient number, since it is larger than the sum of its proper divisors (44816124).

55571716 is a wasteful number, since it uses less digits than its factorization.

55571716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448194 (or 448192 counting only the distinct ones).

The product of its digits is 36750, while the sum is 37.

The square root of 55571716 is about 7454.6439217444. The cubic root of 55571716 is about 381.6084087794.

The spelling of 55571716 in words is "fifty-five million, five hundred seventy-one thousand, seven hundred sixteen".