253000555525 has 6 divisors (see below), whose sum is σ = 313720688882. Its totient is φ = 202400444400.

The previous prime is 253000555517. The next prime is 253000555543. The reversal of 253000555525 is 525555000352.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4404578689 + 248595976836 = 66367^2 + 498594^2 .

It is not a de Polignac number, because 253000555525 - 2³ = 253000555517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5060011086 + ... + 5060011135.

Almost surely, 2^253000555525 is an apocalyptic number.

253000555525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253000555525 is a deficient number, since it is larger than the sum of its proper divisors (60720133357).

253000555525 is a wasteful number, since it uses less digits than its factorization.

253000555525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10120022231 (or 10120022226 counting only the distinct ones).

The product of its (nonzero) digits is 187500, while the sum is 37.

Adding to 253000555525 its reverse (525555000352), we get a palindrome (778555555877).

The spelling of 253000555525 in words is "two hundred fifty-three billion, five hundred fifty-five thousand, five hundred twenty-five".