2251025166 has 32 divisors (see below), whose sum is σ = 4979405088. Its totient is φ = 673902720.

The previous prime is 2251025141. The next prime is 2251025167. The reversal of 2251025166 is 6615201522.

2251025166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2251025166² = 10134228595930655112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251025167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387105 + ... + 392876.

It is an arithmetic number, because the mean of its divisors is an integer number (155606409).

Almost surely, 2^2251025166 is an apocalyptic number.

2251025166 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2251025166 is an abundant number, since it is smaller than the sum of its proper divisors (2728379922).

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

2251025166 is a wasteful number, since it uses less digits than its factorization.

2251025166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780036.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 2251025166 is about 47444.9698703667. The cubic root of 2251025166 is about 1310.5696813289.

Adding to 2251025166 its reverse (6615201522), we get a palindrome (8866226688).

The spelling of 2251025166 in words is "two billion, two hundred fifty-one million, twenty-five thousand, one hundred sixty-six".