2257278550 has 24 divisors (see below), whose sum is σ = 4296182616. Its totient is φ = 881912640.

The previous prime is 2257278523. The next prime is 2257278553. The reversal of 2257278550 is 558727522.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 2257278497 and 2257278506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257278553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 522799 + ... + 527098.

It is an arithmetic number, because the mean of its divisors is an integer number (179007609).

Almost surely, 2^2257278550 is an apocalyptic number.

2257278550 is a deficient number, since it is larger than the sum of its proper divisors (2038904066).

2257278550 is a wasteful number, since it uses less digits than its factorization.

2257278550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049952 (or 1049947 counting only the distinct ones).

The product of its (nonzero) digits is 392000, while the sum is 43.

The square root of 2257278550 is about 47510.8256084863. The cubic root of 2257278550 is about 1311.7821537937.

The spelling of 2257278550 in words is "two billion, two hundred fifty-seven million, two hundred seventy-eight thousand, five hundred fifty".