1525263253 has 2 divisors, whose sum is σ = 1525263254. Its totient is φ = 1525263252.

The previous prime is 1525263199. The next prime is 1525263287. The reversal of 1525263253 is 3523625251.

It is an a-pointer prime, because the next prime (1525263287) can be obtained adding 1525263253 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1513443409 + 11819844 = 38903^2 + 3438^2 .

It is a cyclic number.

It is not a de Polignac number, because 1525263253 - 2²⁵ = 1491708821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1525263293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762631626 + 762631627.

It is an arithmetic number, because the mean of its divisors is an integer number (762631627).

Almost surely, 2^1525263253 is an apocalyptic number.

It is an amenable number.

1525263253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525263253 is an equidigital number, since it uses as much as digits as its factorization.

1525263253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 34.

The square root of 1525263253 is about 39054.6188433583. The cubic root of 1525263253 is about 1151.1049878279.

The spelling of 1525263253 in words is "one billion, five hundred twenty-five million, two hundred sixty-three thousand, two hundred fifty-three".