55880771 has 4 divisors (see below), whose sum is σ = 55902000. Its totient is φ = 55859544.

The previous prime is 55880723. The next prime is 55880807. The reversal of 55880771 is 17708855.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55880771 - 2⁶ = 55880707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55880701) 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, 5996 + ... + 12153.

It is an arithmetic number, because the mean of its divisors is an integer number (13975500).

Almost surely, 2^55880771 is an apocalyptic number.

55880771 is a deficient number, since it is larger than the sum of its proper divisors (21229).

55880771 is a wasteful number, since it uses less digits than its factorization.

55880771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21228.

The product of its (nonzero) digits is 78400, while the sum is 41.

The square root of 55880771 is about 7475.3442061219. The cubic root of 55880771 is about 382.3145235437.

The spelling of 55880771 in words is "fifty-five million, eight hundred eighty thousand, seven hundred seventy-one".