2251257146515 has 8 divisors (see below), whose sum is σ = 2909316927888. Its totient is φ = 1662466815840.

The previous prime is 2251257146497. The next prime is 2251257146519. The reversal of 2251257146515 is 5156417521522.

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

It is not a de Polignac number, because 2251257146515 - 2⁵ = 2251257146483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2251257146519) 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, 17317362601 + ... + 17317362730.

It is an arithmetic number, because the mean of its divisors is an integer number (363664615986).

Almost surely, 2^{2251257146515} is an apocalyptic number.

2251257146515 is a deficient number, since it is larger than the sum of its proper divisors (658059781373).

2251257146515 is a wasteful number, since it uses less digits than its factorization.

2251257146515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34634725349.

The product of its digits is 840000, while the sum is 46.

The spelling of 2251257146515 in words is "two trillion, two hundred fifty-one billion, two hundred fifty-seven million, one hundred forty-six thousand, five hundred fifteen".