25051330101 has 32 divisors (see below), whose sum is σ = 41812727040. Its totient is φ = 13008393216.

The previous prime is 25051330099. The next prime is 25051330111. The reversal of 25051330101 is 10103315052.

It is not a de Polignac number, because 25051330101 - 2¹ = 25051330099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25051330111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1199506 + ... + 1220211.

It is an arithmetic number, because the mean of its divisors is an integer number (1306647720).

Almost surely, 2^25051330101 is an apocalyptic number.

25051330101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

25051330101 is a deficient number, since it is larger than the sum of its proper divisors (16761396939).

25051330101 is a wasteful number, since it uses less digits than its factorization.

25051330101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419773.

The product of its (nonzero) digits is 450, while the sum is 21.

Adding to 25051330101 its reverse (10103315052), we get a palindrome (35154645153).

The spelling of 25051330101 in words is "twenty-five billion, fifty-one million, three hundred thirty thousand, one hundred one".