25103244551 has 48 divisors (see below), whose sum is σ = 31944616704. Its totient is φ = 19308432000.

The previous prime is 25103244541. The next prime is 25103244559. The reversal of 25103244551 is 15544230152.

It is not a de Polignac number, because 25103244551 - 2⁶ = 25103244487 is a prime.

It is a super-2 number, since 2×25103244551² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25103244559) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25852496 + ... + 25853466.

It is an arithmetic number, because the mean of its divisors is an integer number (665512848).

Almost surely, 2^25103244551 is an apocalyptic number.

25103244551 is a deficient number, since it is larger than the sum of its proper divisors (6841372153).

25103244551 is a wasteful number, since it uses less digits than its factorization.

25103244551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364 (or 1353 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 25103244551 in words is "twenty-five billion, one hundred three million, two hundred forty-four thousand, five hundred fifty-one".