25122030028 has 6 divisors (see below), whose sum is σ = 43963552556. Its totient is φ = 12561015012.

The previous prime is 25122029987. The next prime is 25122030029. The reversal of 25122030028 is 82003022152.

It is a super-2 number, since 2×25122030028² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25122029984 and 25122030011.

It is not an unprimeable number, because it can be changed into a prime (25122030029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3140253750 + ... + 3140253757.

Almost surely, 2^25122030028 is an apocalyptic number.

It is an amenable number.

25122030028 is a deficient number, since it is larger than the sum of its proper divisors (18841522528).

25122030028 is a wasteful number, since it uses less digits than its factorization.

25122030028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6280507511 (or 6280507509 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The spelling of 25122030028 in words is "twenty-five billion, one hundred twenty-two million, thirty thousand, twenty-eight".