25020103001 has 4 divisors (see below), whose sum is σ = 25362844212. Its totient is φ = 24677361792.

The previous prime is 25020102929. The next prime is 25020103021. The reversal of 25020103001 is 10030102052.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4719552601 + 20300550400 = 68699^2 + 142480^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25020103001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25020103021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171370496 + ... + 171370641.

It is an arithmetic number, because the mean of its divisors is an integer number (6340711053).

Almost surely, 2^25020103001 is an apocalyptic number.

It is an amenable number.

25020103001 is a deficient number, since it is larger than the sum of its proper divisors (342741211).

25020103001 is an equidigital number, since it uses as much as digits as its factorization.

25020103001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342741210.

The product of its (nonzero) digits is 60, while the sum is 14.

Adding to 25020103001 its reverse (10030102052), we get a palindrome (35050205053).

The spelling of 25020103001 in words is "twenty-five billion, twenty million, one hundred three thousand, one".