1025967251 has 2 divisors, whose sum is σ = 1025967252. Its totient is φ = 1025967250.

The previous prime is 1025967223. The next prime is 1025967259. The reversal of 1025967251 is 1527695201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1025967251 - 2²⁶ = 958858387 is a prime.

It is not a weakly prime, because it can be changed into another prime (1025967259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512983625 + 512983626.

It is an arithmetic number, because the mean of its divisors is an integer number (512983626).

Almost surely, 2^1025967251 is an apocalyptic number.

1025967251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025967251 is an equidigital number, since it uses as much as digits as its factorization.

1025967251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 1025967251 is about 32030.7235478688. The cubic root of 1025967251 is about 1008.5818908015.

The spelling of 1025967251 in words is "one billion, twenty-five million, nine hundred sixty-seven thousand, two hundred fifty-one".