55159830 has 48 divisors (see below), whose sum is σ = 156456144. Its totient is φ = 13371840.

The previous prime is 55159807. The next prime is 55159843. The reversal of 55159830 is 3895155.

It is a happy number.

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, 26869 + ... + 28848.

It is an arithmetic number, because the mean of its divisors is an integer number (3259503).

Almost surely, 2^55159830 is an apocalyptic number.

55159830 is an abundant number, since it is smaller than the sum of its proper divisors (101296314).

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

55159830 is a wasteful number, since it uses less digits than its factorization.

55159830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55741 (or 55738 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 55159830 is about 7426.9664062792. The cubic root of 55159830 is about 380.6632691427.

The spelling of 55159830 in words is "fifty-five million, one hundred fifty-nine thousand, eight hundred thirty".