55121444152 has 32 divisors (see below), whose sum is σ = 105067940400. Its totient is φ = 27103507200.

The previous prime is 55121444149. The next prime is 55121444153. The reversal of 55121444152 is 25144412155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55121444153) 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, 3682299 + ... + 3697237.

Almost surely, 2^55121444152 is an apocalyptic number.

It is an amenable number.

55121444152 is a deficient number, since it is larger than the sum of its proper divisors (49946496248).

55121444152 is a wasteful number, since it uses less digits than its factorization.

55121444152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22567 (or 22563 counting only the distinct ones).

The product of its digits is 32000, while the sum is 34.

The spelling of 55121444152 in words is "fifty-five billion, one hundred twenty-one million, four hundred forty-four thousand, one hundred fifty-two".