25272351635425 has 12 divisors (see below), whose sum is σ = 31338287292796. Its totient is φ = 20217512750400.

The previous prime is 25272351635417. The next prime is 25272351635501. The reversal of 25272351635425 is 52453615327252.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 6595096520464 + 18677255114961 = 2568092^2 + 4321719^2 .

It is not a de Polignac number, because 25272351635425 - 2³ = 25272351635417 is a prime.

It is a super-2 number, since 2×25272351635425² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7810914 + ... + 10561963.

Almost surely, 2^{25272351635425} is an apocalyptic number.

25272351635425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25272351635425 is a deficient number, since it is larger than the sum of its proper divisors (6065935657371).

25272351635425 is a wasteful number, since it uses less digits than its factorization.

25272351635425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18427908 (or 18427903 counting only the distinct ones).

The product of its digits is 15120000, while the sum is 52.

The spelling of 25272351635425 in words is "twenty-five trillion, two hundred seventy-two billion, three hundred fifty-one million, six hundred thirty-five thousand, four hundred twenty-five".