2251555974 has 64 divisors (see below), whose sum is σ = 5495846400. Its totient is φ = 680096736.

The previous prime is 2251555963. The next prime is 2251555979. The reversal of 2251555974 is 4795551522.

2251555974 is a `hidden beast` number, since 2 + 2 + 5 + 1 + 55 + 597 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251555979) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24109 + ... + 71304.

It is an arithmetic number, because the mean of its divisors is an integer number (85872600).

Almost surely, 2^2251555974 is an apocalyptic number.

2251555974 is an abundant number, since it is smaller than the sum of its proper divisors (3244290426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2251555974 is a wasteful number, since it uses less digits than its factorization.

2251555974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95466 (or 95460 counting only the distinct ones).

The product of its digits is 630000, while the sum is 45.

The square root of 2251555974 is about 47450.5634739989. The cubic root of 2251555974 is about 1310.6726871665.

The spelling of 2251555974 in words is "two billion, two hundred fifty-one million, five hundred fifty-five thousand, nine hundred seventy-four".