55939158 has 48 divisors (see below), whose sum is σ = 133166592. Its totient is φ = 16830000.

The previous prime is 55939141. The next prime is 55939187. The reversal of 55939158 is 85193955.

55939158 is a `hidden beast` number, since 5 + 593 + 9 + 1 + 58 = 666.

It is a congruent number.

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, 28963 + ... + 30833.

It is an arithmetic number, because the mean of its divisors is an integer number (2774304).

Almost surely, 2^55939158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55939158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66583296).

55939158 is an abundant number, since it is smaller than the sum of its proper divisors (77227434).

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

55939158 is a wasteful number, since it uses less digits than its factorization.

55939158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041 (or 2038 counting only the distinct ones).

The product of its digits is 243000, while the sum is 45.

The square root of 55939158 is about 7479.2484916601. The cubic root of 55939158 is about 382.4476309183.

The spelling of 55939158 in words is "fifty-five million, nine hundred thirty-nine thousand, one hundred fifty-eight".