25285958620 has 24 divisors (see below), whose sum is σ = 57185168544. Its totient is φ = 9336353856.

The previous prime is 25285958611. The next prime is 25285958629. The reversal of 25285958620 is 2685958252.

It is an interprime number because it is at equal distance from previous prime (25285958611) and next prime (25285958629).

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25285958629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48626584 + ... + 48627103.

It is an arithmetic number, because the mean of its divisors is an integer number (2382715356).

Almost surely, 2^25285958620 is an apocalyptic number.

25285958620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25285958620 is an abundant number, since it is smaller than the sum of its proper divisors (31899209924).

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

25285958620 is a wasteful number, since it uses less digits than its factorization.

25285958620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97253709 (or 97253707 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 52.

The spelling of 25285958620 in words is "twenty-five billion, two hundred eighty-five million, nine hundred fifty-eight thousand, six hundred twenty".