55144453 has 32 divisors (see below), whose sum is σ = 70560000. Its totient is φ = 42815808.

The previous prime is 55144423. The next prime is 55144469. The reversal of 55144453 is 35444155.

It is a happy number.

It is not a de Polignac number, because 55144453 - 2⁵ = 55144421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55144423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 370023 + ... + 370171.

It is an arithmetic number, because the mean of its divisors is an integer number (2205000).

Almost surely, 2^55144453 is an apocalyptic number.

It is an amenable number.

55144453 is a deficient number, since it is larger than the sum of its proper divisors (15415547).

55144453 is a wasteful number, since it uses less digits than its factorization.

55144453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 252 counting only the distinct ones).

The product of its digits is 24000, while the sum is 31.

The square root of 55144453 is about 7425.9311200684. The cubic root of 55144453 is about 380.6278931387.

The spelling of 55144453 in words is "fifty-five million, one hundred forty-four thousand, four hundred fifty-three".