54355551 has 8 divisors (see below), whose sum is σ = 72525744. Its totient is φ = 36211200.

The previous prime is 54355549. The next prime is 54355577. The reversal of 54355551 is 15555345.

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

It is not a de Polignac number, because 54355551 - 2¹ = 54355549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54355591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 856 + ... + 10461.

It is an arithmetic number, because the mean of its divisors is an integer number (9065718).

Almost surely, 2^54355551 is an apocalyptic number.

54355551 is a deficient number, since it is larger than the sum of its proper divisors (18170193).

54355551 is a wasteful number, since it uses less digits than its factorization.

54355551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12921.

The product of its digits is 37500, while the sum is 33.

The square root of 54355551 is about 7372.6217182221. The cubic root of 54355551 is about 378.8040679165.

The spelling of 54355551 in words is "fifty-four million, three hundred fifty-five thousand, five hundred fifty-one".