55227516 has 12 divisors (see below), whose sum is σ = 128864232. Its totient is φ = 18409168.

The previous prime is 55227503. The next prime is 55227521. The reversal of 55227516 is 61572255.

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

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 2301135 + ... + 2301158.

It is an arithmetic number, because the mean of its divisors is an integer number (10738686).

Almost surely, 2^55227516 is an apocalyptic number.

It is an amenable number.

55227516 is an abundant number, since it is smaller than the sum of its proper divisors (73636716).

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

55227516 is a wasteful number, since it uses less digits than its factorization.

55227516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4602300 (or 4602298 counting only the distinct ones).

The product of its digits is 21000, while the sum is 33.

The square root of 55227516 is about 7431.5217822462. The cubic root of 55227516 is about 380.8189080218.

The spelling of 55227516 in words is "fifty-five million, two hundred twenty-seven thousand, five hundred sixteen".