55194624 has 132 divisors (see below), whose sum is σ = 163817316. Its totient is φ = 17891328.

The previous prime is 55194611. The next prime is 55194647. The reversal of 55194624 is 42649155.

It can be written as a sum of positive squares in 2 ways, for example, as 16257024 + 38937600 = 4032^2 + 6240^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (43200) is a multiple of the sum of its prime factors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 488392 + ... + 488504.

Almost surely, 2^55194624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55194624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81908658).

55194624 is an abundant number, since it is smaller than the sum of its proper divisors (108622692).

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

55194624 is a wasteful number, since it uses less digits than its factorization.

55194624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 171 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 55194624 is about 7429.3084469552. The cubic root of 55194624 is about 380.7432912282.

The spelling of 55194624 in words is "fifty-five million, one hundred ninety-four thousand, six hundred twenty-four".