55516851 has 12 divisors (see below), whose sum is σ = 86359728. Its totient is φ = 34164144.

The previous prime is 55516831. The next prime is 55516919. The reversal of 55516851 is 15861555.

It is not a de Polignac number, because 55516851 - 2⁵ = 55516819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55516831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237135 + ... + 237368.

It is an arithmetic number, because the mean of its divisors is an integer number (7196644).

Almost surely, 2^55516851 is an apocalyptic number.

55516851 is a deficient number, since it is larger than the sum of its proper divisors (30842877).

55516851 is a wasteful number, since it uses less digits than its factorization.

55516851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474522 (or 474519 counting only the distinct ones).

The product of its digits is 30000, while the sum is 36.

The square root of 55516851 is about 7450.9630921110. The cubic root of 55516851 is about 381.4827822865.

The spelling of 55516851 in words is "fifty-five million, five hundred sixteen thousand, eight hundred fifty-one".