55129914 has 24 divisors (see below), whose sum is σ = 136512480. Its totient is φ = 15751368.

The previous prime is 55129903. The next prime is 55129927. The reversal of 55129914 is 41992155.

55129914 is a `hidden beast` number, since 551 + 2 + 99 + 14 = 666.

It is a Curzon 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, 218644 + ... + 218895.

It is an arithmetic number, because the mean of its divisors is an integer number (5688020).

Almost surely, 2^55129914 is an apocalyptic number.

55129914 is an abundant number, since it is smaller than the sum of its proper divisors (81382566).

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

55129914 is a wasteful number, since it uses less digits than its factorization.

55129914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437554 (or 437551 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The square root of 55129914 is about 7424.9521210578. The cubic root of 55129914 is about 380.5944389709.

The spelling of 55129914 in words is "fifty-five million, one hundred twenty-nine thousand, nine hundred fourteen".