55406355 has 16 divisors (see below), whose sum is σ = 88750080. Its totient is φ = 29516768.

The previous prime is 55406347. The next prime is 55406423. The reversal of 55406355 is 55360455.

It is a cyclic number.

It is not a de Polignac number, because 55406355 - 2³ = 55406347 is a prime.

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, 17806 + ... + 20684.

It is an arithmetic number, because the mean of its divisors is an integer number (5546880).

Almost surely, 2^55406355 is an apocalyptic number.

55406355 is a deficient number, since it is larger than the sum of its proper divisors (33343725).

55406355 is a wasteful number, since it uses less digits than its factorization.

55406355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4170.

The product of its (nonzero) digits is 45000, while the sum is 33.

The square root of 55406355 is about 7443.5445185745. The cubic root of 55406355 is about 381.2295239384.

The spelling of 55406355 in words is "fifty-five million, four hundred six thousand, three hundred fifty-five".