2623115257 has 4 divisors (see below), whose sum is σ = 2997846016. Its totient is φ = 2248384500.

The previous prime is 2623115239. The next prime is 2623115263. The reversal of 2623115257 is 7525113262.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2623115257 - 2³¹ = 475631609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2623115237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187365369 + ... + 187365382.

It is an arithmetic number, because the mean of its divisors is an integer number (749461504).

Almost surely, 2^2623115257 is an apocalyptic number.

It is an amenable number.

2623115257 is a deficient number, since it is larger than the sum of its proper divisors (374730759).

2623115257 is an equidigital number, since it uses as much as digits as its factorization.

2623115257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374730758.

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

The square root of 2623115257 is about 51216.3573187317. The cubic root of 2623115257 is about 1379.1318591098.

The spelling of 2623115257 in words is "two billion, six hundred twenty-three million, one hundred fifteen thousand, two hundred fifty-seven".