55711851 has 16 divisors (see below), whose sum is σ = 81508896. Its totient is φ = 33636096.

The previous prime is 55711847. The next prime is 55711879. The reversal of 55711851 is 15811755.

It is not a de Polignac number, because 55711851 - 2² = 55711847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55711801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11410 + ... + 15543.

It is an arithmetic number, because the mean of its divisors is an integer number (5094306).

Almost surely, 2^55711851 is an apocalyptic number.

55711851 is a deficient number, since it is larger than the sum of its proper divisors (25797045).

55711851 is a wasteful number, since it uses less digits than its factorization.

55711851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27022.

The product of its digits is 7000, while the sum is 33.

The square root of 55711851 is about 7464.0371783640. The cubic root of 55711851 is about 381.9289063899.

The spelling of 55711851 in words is "fifty-five million, seven hundred eleven thousand, eight hundred fifty-one".