1525605253 has 2 divisors, whose sum is σ = 1525605254. Its totient is φ = 1525605252.

The previous prime is 1525605241. The next prime is 1525605293. The reversal of 1525605253 is 3525065251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1367298529 + 158306724 = 36977^2 + 12582^2 .

It is an emirp because it is prime and its reverse (3525065251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1525605253 - 2⁹ = 1525604741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1525605293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762802626 + 762802627.

It is an arithmetic number, because the mean of its divisors is an integer number (762802627).

Almost surely, 2^1525605253 is an apocalyptic number.

It is an amenable number.

1525605253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525605253 is an equidigital number, since it uses as much as digits as its factorization.

1525605253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 1525605253 is about 39058.9970813384. The cubic root of 1525605253 is about 1151.1910163621.

The spelling of 1525605253 in words is "one billion, five hundred twenty-five million, six hundred five thousand, two hundred fifty-three".