25215003235 has 16 divisors (see below), whose sum is σ = 30471217920. Its totient is φ = 20030300640.

The previous prime is 25215003223. The next prime is 25215003251. The reversal of 25215003235 is 53230051252.

It is not a de Polignac number, because 25215003235 - 2¹¹ = 25215001187 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435924 + ... + 490366.

It is an arithmetic number, because the mean of its divisors is an integer number (1904451120).

Almost surely, 2^25215003235 is an apocalyptic number.

25215003235 is a deficient number, since it is larger than the sum of its proper divisors (5256214685).

25215003235 is a wasteful number, since it uses less digits than its factorization.

25215003235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55098.

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 25215003235 its reverse (53230051252), we get a palindrome (78445054487).

The spelling of 25215003235 in words is "twenty-five billion, two hundred fifteen million, three thousand, two hundred thirty-five".