2257251136 has 28 divisors (see below), whose sum is σ = 5119124128. Its totient is φ = 967393152.

The previous prime is 2257251131. The next prime is 2257251149. The reversal of 2257251136 is 6311527522.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257251131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2518806 + ... + 2519701.

Almost surely, 2^2257251136 is an apocalyptic number.

It is an amenable number.

2257251136 is an abundant number, since it is smaller than the sum of its proper divisors (2861872992).

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

2257251136 is an equidigital number, since it uses as much as digits as its factorization.

2257251136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5038526 (or 5038516 counting only the distinct ones).

The product of its digits is 25200, while the sum is 34.

The square root of 2257251136 is about 47510.5371049413. The cubic root of 2257251136 is about 1311.7768433663.

Adding to 2257251136 its reverse (6311527522), we get a palindrome (8568778658).

The spelling of 2257251136 in words is "two billion, two hundred fifty-seven million, two hundred fifty-one thousand, one hundred thirty-six".