25250002527 has 4 divisors (see below), whose sum is σ = 33666670040. Its totient is φ = 16833335016.

The previous prime is 25250002517. The next prime is 25250002543. The reversal of 25250002527 is 72520005252.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25250002527 - 2¹⁴ = 25249986143 is a prime.

It is a super-2 number, since 2×25250002527² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25250002494 and 25250002503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25250002517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4208333752 + ... + 4208333757.

It is an arithmetic number, because the mean of its divisors is an integer number (8416667510).

Almost surely, 2^25250002527 is an apocalyptic number.

25250002527 is a deficient number, since it is larger than the sum of its proper divisors (8416667513).

25250002527 is an equidigital number, since it uses as much as digits as its factorization.

25250002527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8416667512.

The product of its (nonzero) digits is 14000, while the sum is 30.

Adding to 25250002527 its reverse (72520005252), we get a palindrome (97770007779).

The spelling of 25250002527 in words is "twenty-five billion, two hundred fifty million, two thousand, five hundred twenty-seven".