2015426251 has 2 divisors, whose sum is σ = 2015426252. Its totient is φ = 2015426250.

The previous prime is 2015426243. The next prime is 2015426261. The reversal of 2015426251 is 1526245102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2015426251 - 2³ = 2015426243 is a prime.

It is not a weakly prime, because it can be changed into another prime (2015426201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007713125 + 1007713126.

It is an arithmetic number, because the mean of its divisors is an integer number (1007713126).

Almost surely, 2^2015426251 is an apocalyptic number.

2015426251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015426251 is an equidigital number, since it uses as much as digits as its factorization.

2015426251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 2015426251 is about 44893.4989837059. The cubic root of 2015426251 is about 1263.1520667253.

The spelling of 2015426251 in words is "two billion, fifteen million, four hundred twenty-six thousand, two hundred fifty-one".