25270021036 has 48 divisors (see below), whose sum is σ = 48535527040. Its totient is φ = 11441813760.

The previous prime is 25270021027. The next prime is 25270021037. The reversal of 25270021036 is 63012007252.

It is a junction number, because it is equal to n+sod(n) for n = 25270020995 and 25270021013.

It is not an unprimeable number, because it can be changed into a prime (25270021037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 625366 + ... + 664546.

Almost surely, 2^25270021036 is an apocalyptic number.

25270021036 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

25270021036 is a deficient number, since it is larger than the sum of its proper divisors (23265506004).

25270021036 is a wasteful number, since it uses less digits than its factorization.

25270021036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39434 (or 39432 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

Adding to 25270021036 its reverse (63012007252), we get a palindrome (88282028288).

The spelling of 25270021036 in words is "twenty-five billion, two hundred seventy million, twenty-one thousand, thirty-six".