55774149 has 16 divisors (see below), whose sum is σ = 77801472. Its totient is φ = 35473328.

The previous prime is 55774141. The next prime is 55774171. The reversal of 55774149 is 94147755.

It is a happy number.

55774149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55774149 - 2³ = 55774141 is a prime.

It is a super-2 number, since 2×55774149² = 6221511393348402, 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 55774149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55774141) 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 15 ways as a sum of consecutive naturals, for example, 33904 + ... + 35510.

It is an arithmetic number, because the mean of its divisors is an integer number (4862592).

Almost surely, 2^55774149 is an apocalyptic number.

It is an amenable number.

55774149 is a deficient number, since it is larger than the sum of its proper divisors (22027323).

55774149 is a wasteful number, since it uses less digits than its factorization.

55774149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136.

The product of its digits is 176400, while the sum is 42.

The square root of 55774149 is about 7468.2092231003. The cubic root of 55774149 is about 382.0712132980.

The spelling of 55774149 in words is "fifty-five million, seven hundred seventy-four thousand, one hundred forty-nine".