55406454 has 16 divisors (see below), whose sum is σ = 112467648. Its totient is φ = 18193032.

The previous prime is 55406441. The next prime is 55406459. The reversal of 55406454 is 45460455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55406459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68512 + ... + 69315.

It is an arithmetic number, because the mean of its divisors is an integer number (7029228).

Almost surely, 2^55406454 is an apocalyptic number.

55406454 is an abundant number, since it is smaller than the sum of its proper divisors (57061194).

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

55406454 is a wasteful number, since it uses less digits than its factorization.

55406454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137899.

The product of its (nonzero) digits is 48000, while the sum is 33.

The square root of 55406454 is about 7443.5511686291. The cubic root of 55406454 is about 381.2297509984.

The spelling of 55406454 in words is "fifty-five million, four hundred six thousand, four hundred fifty-four".