25555325503015 has 48 divisors (see below), whose sum is σ = 38692775794176. Its totient is φ = 15860413103040.

The previous prime is 25555325503007. The next prime is 25555325503027. The reversal of 25555325503015 is 51030552355552.

It is not a de Polignac number, because 25555325503015 - 2³ = 25555325503007 is a prime.

It is a congruent number.

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, 12330099 + ... + 14252788.

It is an arithmetic number, because the mean of its divisors is an integer number (806099495712).

Almost surely, 2^{25555325503015} is an apocalyptic number.

25555325503015 is a deficient number, since it is larger than the sum of its proper divisors (13137450291161).

25555325503015 is a wasteful number, since it uses less digits than its factorization.

25555325503015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26583148 (or 26583137 counting only the distinct ones).

The product of its (nonzero) digits is 2812500, while the sum is 46.

Adding to 25555325503015 its reverse (51030552355552), we get a palindrome (76585877858567).

The spelling of 25555325503015 in words is "twenty-five trillion, five hundred fifty-five billion, three hundred twenty-five million, five hundred three thousand, fifteen".