55774245 has 16 divisors (see below), whose sum is σ = 89736192. Its totient is φ = 29580480.

The previous prime is 55774223. The next prime is 55774247. The reversal of 55774245 is 54247755.

It is not a de Polignac number, because 55774245 - 2⁶ = 55774181 is a prime.

It is a super-2 number, since 2×55774245² = 6221532810640050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55774247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7557 + ... + 12986.

It is an arithmetic number, because the mean of its divisors is an integer number (5608512).

Almost surely, 2^55774245 is an apocalyptic number.

It is an amenable number.

55774245 is a deficient number, since it is larger than the sum of its proper divisors (33961947).

55774245 is a wasteful number, since it uses less digits than its factorization.

55774245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20732.

The product of its digits is 196000, while the sum is 39.

The square root of 55774245 is about 7468.2156503411. The cubic root of 55774245 is about 382.0714325084.

The spelling of 55774245 in words is "fifty-five million, seven hundred seventy-four thousand, two hundred forty-five".