55102554 has 48 divisors (see below), whose sum is σ = 129382344. Its totient is φ = 16848000.

The previous prime is 55102543. The next prime is 55102601. The reversal of 55102554 is 45520155.

55102554 is a `hidden beast` number, since 5 + 5 + 102 + 554 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3908529 + 51194025 = 1977^2 + 7155^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41704 + ... + 43004.

Almost surely, 2^55102554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55102554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64691172).

55102554 is an abundant number, since it is smaller than the sum of its proper divisors (74279790).

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

55102554 is a wasteful number, since it uses less digits than its factorization.

55102554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503 (or 1500 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 55102554 is about 7423.1094562858. The cubic root of 55102554 is about 380.5314677926.

The spelling of 55102554 in words is "fifty-five million, one hundred two thousand, five hundred fifty-four".