4025717820 has 144 divisors (see below), whose sum is σ = 12903377760. Its totient is φ = 1053202176.

The previous prime is 4025717809. The next prime is 4025717831. The reversal of 4025717820 is 287175204.

4025717820 is a `hidden beast` number, since 4 + 0 + 2 + 571 + 7 + 82 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (4025717809) and next prime (4025717831).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 249766 + ... + 265394.

It is an arithmetic number, because the mean of its divisors is an integer number (89606790).

Almost surely, 2^4025717820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4025717820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6451688880).

4025717820 is an abundant number, since it is smaller than the sum of its proper divisors (8877659940).

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

4025717820 is a wasteful number, since it uses less digits than its factorization.

4025717820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15706 (or 15692 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 4025717820 is about 63448.5446641607. The cubic root of 4025717820 is about 1590.7958280202.

The spelling of 4025717820 in words is "four billion, twenty-five million, seven hundred seventeen thousand, eight hundred twenty".