55055406 has 32 divisors (see below), whose sum is σ = 126125568. Its totient is φ = 15694560.

The previous prime is 55055387. The next prime is 55055417. The reversal of 55055406 is 60455055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21511 + ... + 23933.

It is an arithmetic number, because the mean of its divisors is an integer number (3941424).

Almost surely, 2^55055406 is an apocalyptic number.

55055406 is an abundant number, since it is smaller than the sum of its proper divisors (71070162).

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

55055406 is a wasteful number, since it uses less digits than its factorization.

55055406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2976.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 55055406 is about 7419.9330185656. The cubic root of 55055406 is about 380.4229040578.

The spelling of 55055406 in words is "fifty-five million, fifty-five thousand, four hundred six".