25130155020 has 24 divisors (see below), whose sum is σ = 70364434224. Its totient is φ = 6701374656.

The previous prime is 25130154997. The next prime is 25130155081. The reversal of 25130155020 is 2055103152.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209417899 + ... + 209418018.

It is an arithmetic number, because the mean of its divisors is an integer number (2931851426).

Almost surely, 2^25130155020 is an apocalyptic number.

25130155020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25130155020 is an abundant number, since it is smaller than the sum of its proper divisors (45234279204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25130155020 is a wasteful number, since it uses less digits than its factorization.

25130155020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418835929 (or 418835927 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

Adding to 25130155020 its reverse (2055103152), we get a palindrome (27185258172).

The spelling of 25130155020 in words is "twenty-five billion, one hundred thirty million, one hundred fifty-five thousand, twenty".