25102070103 has 32 divisors (see below), whose sum is σ = 38698912512. Its totient is φ = 14304012800.

The previous prime is 25102070087. The next prime is 25102070177. The reversal of 25102070103 is 30107020152.

It is not a de Polignac number, because 25102070103 - 2⁴ = 25102070087 is a prime.

It is a super-2 number, since 2×25102070103² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25102070103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25102070003) 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, 546208 + ... + 590378.

It is an arithmetic number, because the mean of its divisors is an integer number (1209341016).

Almost surely, 2^25102070103 is an apocalyptic number.

25102070103 is a deficient number, since it is larger than the sum of its proper divisors (13596842409).

25102070103 is a wasteful number, since it uses less digits than its factorization.

25102070103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45215.

The product of its (nonzero) digits is 420, while the sum is 21.

Adding to 25102070103 its reverse (30107020152), we get a palindrome (55209090255).

It can be divided in two parts, 251020 and 70103, that added together give a palindrome (321123).

The spelling of 25102070103 in words is "twenty-five billion, one hundred two million, seventy thousand, one hundred three".