28425020250 has 128 divisors (see below), whose sum is σ = 78270416640. Its totient is φ = 6813312000.

The previous prime is 28425020249. The next prime is 28425020251. The reversal of 28425020250 is 5202052482.

It is an interprime number because it is at equal distance from previous prime (28425020249) and next prime (28425020251).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (28425020251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 714894 + ... + 753606.

It is an arithmetic number, because the mean of its divisors is an integer number (611487630).

Almost surely, 2^28425020250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28425020250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39135208320).

28425020250 is an abundant number, since it is smaller than the sum of its proper divisors (49845396390).

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

28425020250 is a wasteful number, since it uses less digits than its factorization.

28425020250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38833 (or 38823 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The spelling of 28425020250 in words is "twenty-eight billion, four hundred twenty-five million, twenty thousand, two hundred fifty".