55555434 has 24 divisors (see below), whose sum is σ = 131313312. Its totient is φ = 16834920.

The previous prime is 55555429. The next prime is 55555459. The reversal of 55555434 is 43455555.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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, 140094 + ... + 140489.

It is an arithmetic number, because the mean of its divisors is an integer number (5471388).

Almost surely, 2^55555434 is an apocalyptic number.

55555434 is an abundant number, since it is smaller than the sum of its proper divisors (75757878).

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

55555434 is a wasteful number, since it uses less digits than its factorization.

55555434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280602 (or 280599 counting only the distinct ones).

The product of its digits is 150000, while the sum is 36.

The square root of 55555434 is about 7453.5517708003. The cubic root of 55555434 is about 381.5711358915.

The spelling of 55555434 in words is "fifty-five million, five hundred fifty-five thousand, four hundred thirty-four".