1525634263 has 2 divisors, whose sum is σ = 1525634264. Its totient is φ = 1525634262.

The previous prime is 1525634251. The next prime is 1525634267. The reversal of 1525634263 is 3624365251.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1525634263 - 2²¹ = 1523537111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1525634267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762817131 + 762817132.

It is an arithmetic number, because the mean of its divisors is an integer number (762817132).

Almost surely, 2^1525634263 is an apocalyptic number.

1525634263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525634263 is an equidigital number, since it uses as much as digits as its factorization.

1525634263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 37.

The square root of 1525634263 is about 39059.3684408747. The cubic root of 1525634263 is about 1151.1983131032.

The spelling of 1525634263 in words is "one billion, five hundred twenty-five million, six hundred thirty-four thousand, two hundred sixty-three".