2521525453 has 4 divisors (see below), whose sum is σ = 2557039968. Its totient is φ = 2486010940.

The previous prime is 2521525439. The next prime is 2521525471. The reversal of 2521525453 is 3545251252.

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-2521525453 is a prime.

It is a super-2 number, since 2×2521525453² = 12716181220253710418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521525753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17757151 + ... + 17757292.

It is an arithmetic number, because the mean of its divisors is an integer number (639259992).

Almost surely, 2^2521525453 is an apocalyptic number.

It is an amenable number.

2521525453 is a deficient number, since it is larger than the sum of its proper divisors (35514515).

2521525453 is an equidigital number, since it uses as much as digits as its factorization.

2521525453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35514514.

The product of its digits is 60000, while the sum is 34.

The square root of 2521525453 is about 50214.7931689457. The cubic root of 2521525453 is about 1361.0929530610.

The spelling of 2521525453 in words is "two billion, five hundred twenty-one million, five hundred twenty-five thousand, four hundred fifty-three".