2515401291 has 16 divisors (see below), whose sum is σ = 3699954720. Its totient is φ = 1510183680.

The previous prime is 2515401281. The next prime is 2515401331. The reversal of 2515401291 is 1921045152.

It is not a de Polignac number, because 2515401291 - 2⁹ = 2515400779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2515401281) 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, 784956 + ... + 788153.

It is an arithmetic number, because the mean of its divisors is an integer number (231247170).

Almost surely, 2^2515401291 is an apocalyptic number.

2515401291 is a deficient number, since it is larger than the sum of its proper divisors (1184553429).

2515401291 is a wasteful number, since it uses less digits than its factorization.

2515401291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573166.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 2515401291 is about 50153.7764380709. The cubic root of 2515401291 is about 1359.9901403192.

The spelling of 2515401291 in words is "two billion, five hundred fifteen million, four hundred one thousand, two hundred ninety-one".