55687011 has 8 divisors (see below), whose sum is σ = 74321424. Its totient is φ = 37088640.

The previous prime is 55687007. The next prime is 55687013. The reversal of 55687011 is 11078655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55687011 - 2² = 55687007 is a prime.

It is a super-2 number, since 2×55687011² = 6202086388228242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55687013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5170 + ... + 11751.

It is an arithmetic number, because the mean of its divisors is an integer number (9290178).

Almost surely, 2^55687011 is an apocalyptic number.

55687011 is a deficient number, since it is larger than the sum of its proper divisors (18634413).

55687011 is a wasteful number, since it uses less digits than its factorization.

55687011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18021.

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 55687011 is about 7462.3730139949. The cubic root of 55687011 is about 381.8721349597.

The spelling of 55687011 in words is "fifty-five million, six hundred eighty-seven thousand, eleven".