55315454 has 4 divisors (see below), whose sum is σ = 82973184. Its totient is φ = 27657726.

The previous prime is 55315451. The next prime is 55315459. The reversal of 55315454 is 45451355.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×55315454² = 6119598902452232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55315454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55315451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13828862 + ... + 13828865.

It is an arithmetic number, because the mean of its divisors is an integer number (20743296).

Almost surely, 2^55315454 is an apocalyptic number.

55315454 is a deficient number, since it is larger than the sum of its proper divisors (27657730).

55315454 is a wasteful number, since it uses less digits than its factorization.

55315454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27657729.

The product of its digits is 30000, while the sum is 32.

The square root of 55315454 is about 7437.4359829178. The cubic root of 55315454 is about 381.0209250407.

The spelling of 55315454 in words is "fifty-five million, three hundred fifteen thousand, four hundred fifty-four".