25027001020 has 48 divisors (see below), whose sum is σ = 63226114560. Its totient is φ = 8129070144.

The previous prime is 25027001011. The next prime is 25027001047. The reversal of 25027001020 is 2010072052.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4701664 + ... + 4706983.

It is an arithmetic number, because the mean of its divisors is an integer number (1317210720).

Almost surely, 2^25027001020 is an apocalyptic number.

25027001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25027001020 is an abundant number, since it is smaller than the sum of its proper divisors (38199113540).

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

25027001020 is a wasteful number, since it uses less digits than its factorization.

25027001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9408682 (or 9408680 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

Adding to 25027001020 its reverse (2010072052), we get a palindrome (27037073072).

The spelling of 25027001020 in words is "twenty-five billion, twenty-seven million, one thousand, twenty".