55551554 has 8 divisors (see below), whose sum is σ = 87713040. Its totient is φ = 26313876.

The previous prime is 55551547. The next prime is 55551557. The reversal of 55551554 is 45515555.

It is a happy number.

55551554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (55551557) 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 in 3 ways as a sum of consecutive naturals, for example, 730904 + ... + 730979.

It is an arithmetic number, because the mean of its divisors is an integer number (10964130).

Almost surely, 2^55551554 is an apocalyptic number.

55551554 is a deficient number, since it is larger than the sum of its proper divisors (32161486).

55551554 is a wasteful number, since it uses less digits than its factorization.

55551554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461904.

The product of its digits is 62500, while the sum is 35.

The square root of 55551554 is about 7453.2914876583. The cubic root of 55551554 is about 381.5622526892.

The spelling of 55551554 in words is "fifty-five million, five hundred fifty-one thousand, five hundred fifty-four".