2515879 has 2 divisors, whose sum is σ = 2515880. Its totient is φ = 2515878.

The previous prime is 2515873. The next prime is 2515897. The reversal of 2515879 is 9785152.

Together with next prime (2515897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2515879 - 2³ = 2515871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2515871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257939 + 1257940.

It is an arithmetic number, because the mean of its divisors is an integer number (1257940).

2^2515879 is an apocalyptic number.

2515879 is a deficient number, since it is larger than the sum of its proper divisors (1).

2515879 is an equidigital number, since it uses as much as digits as its factorization.

2515879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 37.

The square root of 2515879 is about 1586.1522625524. The cubic root of 2515879 is about 136.0076228426.

The spelling of 2515879 in words is "two million, five hundred fifteen thousand, eight hundred seventy-nine".