1525264999 has 2 divisors, whose sum is σ = 1525265000. Its totient is φ = 1525264998.

The previous prime is 1525264981. The next prime is 1525265011. The reversal of 1525264999 is 9994625251.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1525264999 - 2⁵ = 1525264967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1525264969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762632499 + 762632500.

It is an arithmetic number, because the mean of its divisors is an integer number (762632500).

Almost surely, 2^1525264999 is an apocalyptic number.

1525264999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525264999 is an equidigital number, since it uses as much as digits as its factorization.

1525264999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1749600, while the sum is 52.

The square root of 1525264999 is about 39054.6411966619. The cubic root of 1525264999 is about 1151.1054270589.

The spelling of 1525264999 in words is "one billion, five hundred twenty-five million, two hundred sixty-four thousand, nine hundred ninety-nine".