25123351053 has 24 divisors (see below), whose sum is σ = 35168357952. Its totient is φ = 15951694528.

The previous prime is 25123351013. The next prime is 25123351061. The reversal of 25123351053 is 35015332152.

It is not a de Polignac number, because 25123351053 - 2²⁰ = 25122302477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25123351053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25123351003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 335800 + ... + 403742.

It is an arithmetic number, because the mean of its divisors is an integer number (1465348248).

Almost surely, 2^25123351053 is an apocalyptic number.

25123351053 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

25123351053 is a deficient number, since it is larger than the sum of its proper divisors (10045006899).

25123351053 is a wasteful number, since it uses less digits than its factorization.

25123351053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68225 (or 68202 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 30.

The spelling of 25123351053 in words is "twenty-five billion, one hundred twenty-three million, three hundred fifty-one thousand, fifty-three".