25125103534 has 4 divisors (see below), whose sum is σ = 37687655304. Its totient is φ = 12562551766.

The previous prime is 25125103529. The next prime is 25125103543. The reversal of 25125103534 is 43530152152.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 25125103496 and 25125103505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6281275882 + ... + 6281275885.

It is an arithmetic number, because the mean of its divisors is an integer number (9421913826).

Almost surely, 2^25125103534 is an apocalyptic number.

25125103534 is a deficient number, since it is larger than the sum of its proper divisors (12562551770).

25125103534 is a wasteful number, since it uses less digits than its factorization.

25125103534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12562551769.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 25125103534 its reverse (43530152152), we get a palindrome (68655255686).

The spelling of 25125103534 in words is "twenty-five billion, one hundred twenty-five million, one hundred three thousand, five hundred thirty-four".