55087716 has 12 divisors (see below), whose sum is σ = 128538032. Its totient is φ = 18362568.

The previous prime is 55087699. The next prime is 55087729. The reversal of 55087716 is 61778055.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2295310 + ... + 2295333.

Almost surely, 2^55087716 is an apocalyptic number.

It is an amenable number.

55087716 is an abundant number, since it is smaller than the sum of its proper divisors (73450316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55087716 is a wasteful number, since it uses less digits than its factorization.

55087716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4590650 (or 4590648 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 39.

The square root of 55087716 is about 7422.1099425972. The cubic root of 55087716 is about 380.4973082579.

The spelling of 55087716 in words is "fifty-five million, eighty-seven thousand, seven hundred sixteen".