2251255513 has 8 divisors (see below), whose sum is σ = 2427283208. Its totient is φ = 2075635584.

The previous prime is 2251255483. The next prime is 2251255547. The reversal of 2251255513 is 3155521522.

It can be written as a sum of positive squares in 4 ways, for example, as 314991504 + 1936264009 = 17748^2 + 44003^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2251255513 - 2¹⁷ = 2251124441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2251255913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90420 + ... + 112597.

It is an arithmetic number, because the mean of its divisors is an integer number (303410401).

Almost surely, 2^2251255513 is an apocalyptic number.

It is an amenable number.

2251255513 is a deficient number, since it is larger than the sum of its proper divisors (176027695).

2251255513 is a wasteful number, since it uses less digits than its factorization.

2251255513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203883.

The product of its digits is 15000, while the sum is 31.

The square root of 2251255513 is about 47447.3973258808. The cubic root of 2251255513 is about 1310.6143832573.

The spelling of 2251255513 in words is "two billion, two hundred fifty-one million, two hundred fifty-five thousand, five hundred thirteen".