55491354 has 24 divisors (see below), whose sum is σ = 120849300. Its totient is φ = 18402048.

The previous prime is 55491323. The next prime is 55491391. The reversal of 55491354 is 45319455.

It can be written as a sum of positive squares in 2 ways, for example, as 54420129 + 1071225 = 7377^2 + 1035^2 .

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, 4279 + ... + 11370.

Almost surely, 2^55491354 is an apocalyptic number.

55491354 is an abundant number, since it is smaller than the sum of its proper divisors (65357946).

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

55491354 is a wasteful number, since it uses less digits than its factorization.

55491354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15854 (or 15851 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 55491354 is about 7449.2519087490. The cubic root of 55491354 is about 381.4243726580.

It can be divided in two parts, 5549 and 1354, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 55491354 in words is "fifty-five million, four hundred ninety-one thousand, three hundred fifty-four".