253075030525 has 12 divisors (see below), whose sum is σ = 315406003572. Its totient is φ = 201432304640.

The previous prime is 253075030519. The next prime is 253075030529. The reversal of 253075030525 is 525030570352.

It can be written as a sum of positive squares in 6 ways, for example, as 9065705796 + 244009324729 = 95214^2 + 493973^2 .

It is a de Polignac number, because none of the positive numbers 2^k-253075030525 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253075030529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25687972 + ... + 25697821.

It is an arithmetic number, because the mean of its divisors is an integer number (26283833631).

Almost surely, 2^253075030525 is an apocalyptic number.

253075030525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253075030525 is a deficient number, since it is larger than the sum of its proper divisors (62330973047).

253075030525 is a wasteful number, since it uses less digits than its factorization.

253075030525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51386000 (or 51385995 counting only the distinct ones).

The product of its (nonzero) digits is 157500, while the sum is 37.

The spelling of 253075030525 in words is "two hundred fifty-three billion, seventy-five million, thirty thousand, five hundred twenty-five".