275645513825 has 48 divisors (see below), whose sum is σ = 377392720320. Its totient is φ = 198050400000.

The previous prime is 275645513807. The next prime is 275645513831. The reversal of 275645513825 is 528315546572.

It is not a de Polignac number, because 275645513825 - 2⁸ = 275645513569 is a prime.

It is a super-2 number, since 2×275645513825² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10388075 + ... + 10414575.

It is an arithmetic number, because the mean of its divisors is an integer number (7862348340).

Almost surely, 2^275645513825 is an apocalyptic number.

275645513825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

275645513825 is a deficient number, since it is larger than the sum of its proper divisors (101747206495).

275645513825 is a wasteful number, since it uses less digits than its factorization.

275645513825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26978 (or 26973 counting only the distinct ones).

The product of its digits is 10080000, while the sum is 53.

The spelling of 275645513825 in words is "two hundred seventy-five billion, six hundred forty-five million, five hundred thirteen thousand, eight hundred twenty-five".