25725130000 has 50 divisors (see below), whose sum is σ = 62283136454. Its totient is φ = 10290048000.

The previous prime is 25725129979. The next prime is 25725130001. The reversal of 25725130000 is 3152752.

It can be written as a sum of positive squares in 5 ways, for example, as 16746430464 + 8978699536 = 129408^2 + 94756^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (25725130001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1276257 + ... + 1296256.

Almost surely, 2^25725130000 is an apocalyptic number.

25725130000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25725130000 is an abundant number, since it is smaller than the sum of its proper divisors (36558006454).

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

25725130000 is an equidigital number, since it uses as much as digits as its factorization.

25725130000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572541 (or 2572520 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

Adding to 25725130000 its reverse (3152752), we get a palindrome (25728282752).

The spelling of 25725130000 in words is "twenty-five billion, seven hundred twenty-five million, one hundred thirty thousand".