1525324253 has 4 divisors (see below), whose sum is σ = 1525868160. Its totient is φ = 1524780348.

The previous prime is 1525324231. The next prime is 1525324289. The reversal of 1525324253 is 3524235251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1525324253 is a prime.

It is a super-2 number, since 2×1525324253² = 4653228153580016018, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1525323253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267725 + ... + 273362.

It is an arithmetic number, because the mean of its divisors is an integer number (381467040).

Almost surely, 2^1525324253 is an apocalyptic number.

It is an amenable number.

1525324253 is a deficient number, since it is larger than the sum of its proper divisors (543907).

1525324253 is an equidigital number, since it uses as much as digits as its factorization.

1525324253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543906.

The product of its digits is 36000, while the sum is 32.

The square root of 1525324253 is about 39055.3997931144. The cubic root of 1525324253 is about 1151.1203330409.

The spelling of 1525324253 in words is "one billion, five hundred twenty-five million, three hundred twenty-four thousand, two hundred fifty-three".