55774121 has 8 divisors (see below), whose sum is σ = 60911424. Its totient is φ = 50757840.

The previous prime is 55774109. The next prime is 55774123. The reversal of 55774121 is 12147755.

55774121 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55774121 is a prime.

It is a super-2 number, since 2×55774121² = 6221505146645282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55774123) 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 7 ways as a sum of consecutive naturals, for example, 29291 + ... + 31136.

It is an arithmetic number, because the mean of its divisors is an integer number (7613928).

Almost surely, 2^55774121 is an apocalyptic number.

It is an amenable number.

55774121 is a deficient number, since it is larger than the sum of its proper divisors (5137303).

55774121 is a wasteful number, since it uses less digits than its factorization.

55774121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60511.

The product of its digits is 9800, while the sum is 32.

The square root of 55774121 is about 7468.2073484873. The cubic root of 55774121 is about 382.0711493616.

The spelling of 55774121 in words is "fifty-five million, seven hundred seventy-four thousand, one hundred twenty-one".