1525088321 has 2 divisors, whose sum is σ = 1525088322. Its totient is φ = 1525088320.

The previous prime is 1525088317. The next prime is 1525088329. The reversal of 1525088321 is 1238805251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1514065921 + 11022400 = 38911^2 + 3320^2 .

It is a cyclic number.

It is not a de Polignac number, because 1525088321 - 2² = 1525088317 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1525088329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762544160 + 762544161.

It is an arithmetic number, because the mean of its divisors is an integer number (762544161).

Almost surely, 2^1525088321 is an apocalyptic number.

It is an amenable number.

1525088321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525088321 is an equidigital number, since it uses as much as digits as its factorization.

1525088321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 1525088321 is about 39052.3791976878. The cubic root of 1525088321 is about 1151.0609795131.

The spelling of 1525088321 in words is "one billion, five hundred twenty-five million, eighty-eight thousand, three hundred twenty-one".