1525996897 has 2 divisors, whose sum is σ = 1525996898. Its totient is φ = 1525996896.

The previous prime is 1525996889. The next prime is 1525996903. The reversal of 1525996897 is 7986995251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1375223056 + 150773841 = 37084^2 + 12279^2 .

It is a cyclic number.

It is not a de Polignac number, because 1525996897 - 2³ = 1525996889 is a prime.

It is not a weakly prime, because it can be changed into another prime (1525996807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762998448 + 762998449.

It is an arithmetic number, because the mean of its divisors is an integer number (762998449).

Almost surely, 2^1525996897 is an apocalyptic number.

It is an amenable number.

1525996897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525996897 is an equidigital number, since it uses as much as digits as its factorization.

1525996897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12247200, while the sum is 61.

The square root of 1525996897 is about 39064.0102524050. The cubic root of 1525996897 is about 1151.2895168269.

The spelling of 1525996897 in words is "one billion, five hundred twenty-five million, nine hundred ninety-six thousand, eight hundred ninety-seven".