2551166450 has 24 divisors (see below), whose sum is σ = 5423051712. Its totient is φ = 874685520.

The previous prime is 2551166441. The next prime is 2551166459. The reversal of 2551166450 is 546611552.

It is an interprime number because it is at equal distance from previous prime (2551166441) and next prime (2551166459).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 2551166450.

It is not an unprimeable number, because it can be changed into a prime (2551166459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3644174 + ... + 3644873.

It is an arithmetic number, because the mean of its divisors is an integer number (225960488).

Almost surely, 2^2551166450 is an apocalyptic number.

2551166450 is an abundant number, since it is smaller than the sum of its proper divisors (2871885262).

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

2551166450 is a wasteful number, since it uses less digits than its factorization.

2551166450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7289066 (or 7289061 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 2551166450 is about 50509.0729473428. The cubic root of 2551166450 is about 1366.4054901136.

The spelling of 2551166450 in words is "two billion, five hundred fifty-one million, one hundred sixty-six thousand, four hundred fifty".