2531256379 has 2 divisors, whose sum is σ = 2531256380. Its totient is φ = 2531256378.

The previous prime is 2531256373. The next prime is 2531256383. The reversal of 2531256379 is 9736521352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2531256379 - 2¹¹ = 2531254331 is a prime.

It is not a weakly prime, because it can be changed into another prime (2531256373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265628189 + 1265628190.

It is an arithmetic number, because the mean of its divisors is an integer number (1265628190).

Almost surely, 2^2531256379 is an apocalyptic number.

2531256379 is a deficient number, since it is larger than the sum of its proper divisors (1).

2531256379 is an equidigital number, since it uses as much as digits as its factorization.

2531256379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 340200, while the sum is 43.

The square root of 2531256379 is about 50311.5928887170. The cubic root of 2531256379 is about 1362.8415894540.

The spelling of 2531256379 in words is "two billion, five hundred thirty-one million, two hundred fifty-six thousand, three hundred seventy-nine".