55357449 has 16 divisors (see below), whose sum is σ = 84483072. Its totient is φ = 31584528.

The previous prime is 55357429. The next prime is 55357451. The reversal of 55357449 is 94475355.

It is not a de Polignac number, because 55357449 - 2⁵ = 55357417 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55357449.

It is not an unprimeable number, because it can be changed into a prime (55357429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15682 + ... + 18884.

It is an arithmetic number, because the mean of its divisors is an integer number (5280192).

Almost surely, 2^55357449 is an apocalyptic number.

It is an amenable number.

55357449 is a deficient number, since it is larger than the sum of its proper divisors (29125623).

55357449 is a wasteful number, since it uses less digits than its factorization.

55357449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4036.

The product of its digits is 378000, while the sum is 42.

The square root of 55357449 is about 7440.2586648584. The cubic root of 55357449 is about 381.1173232142.

The spelling of 55357449 in words is "fifty-five million, three hundred fifty-seven thousand, four hundred forty-nine".