55197044 has 24 divisors (see below), whose sum is σ = 113379840. Its totient is φ = 23016096.

The previous prime is 55197041. The next prime is 55197047. The reversal of 55197044 is 44079155.

It is an interprime number because it is at equal distance from previous prime (55197041) and next prime (55197047).

It is a junction number, because it is equal to n+sod(n) for n = 55196995 and 55197013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55197041) 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, 25604 + ... + 27675.

It is an arithmetic number, because the mean of its divisors is an integer number (4724160).

Almost surely, 2^55197044 is an apocalyptic number.

It is an amenable number.

55197044 is an abundant number, since it is smaller than the sum of its proper divisors (58182796).

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

55197044 is a wasteful number, since it uses less digits than its factorization.

55197044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53327 (or 53325 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 55197044 is about 7429.4713136266. The cubic root of 55197044 is about 380.7488556910.

The spelling of 55197044 in words is "fifty-five million, one hundred ninety-seven thousand, forty-four".