55511474 has 4 divisors (see below), whose sum is σ = 83267214. Its totient is φ = 27755736.

The previous prime is 55511471. The next prime is 55511497. The reversal of 55511474 is 47411555.

55511474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 35485849 + 20025625 = 5957^2 + 4475^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55511474.

It is not an unprimeable number, because it can be changed into a prime (55511471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13877867 + ... + 13877870.

Almost surely, 2^55511474 is an apocalyptic number.

55511474 is a deficient number, since it is larger than the sum of its proper divisors (27755740).

55511474 is a wasteful number, since it uses less digits than its factorization.

55511474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27755739.

The product of its digits is 14000, while the sum is 32.

The square root of 55511474 is about 7450.6022575360. The cubic root of 55511474 is about 381.4704659110.

The spelling of 55511474 in words is "fifty-five million, five hundred eleven thousand, four hundred seventy-four".