5425164640 has 96 divisors (see below), whose sum is σ = 14675411520. Its totient is φ = 1856569344.

The previous prime is 5425164587. The next prime is 5425164683. The reversal of 5425164640 is 464615245.

It is a super-2 number, since 2×5425164640² = 58864822742212659200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5425164640.

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, 633024 + ... + 641536.

It is an arithmetic number, because the mean of its divisors is an integer number (152868870).

Almost surely, 2^5425164640 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 5425164640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7337705760).

5425164640 is an abundant number, since it is smaller than the sum of its proper divisors (9250246880).

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

5425164640 is a wasteful number, since it uses less digits than its factorization.

5425164640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9104 (or 9096 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The square root of 5425164640 is about 73655.7169539473. The cubic root of 5425164640 is about 1757.1316743605.

Adding to 5425164640 its reverse (464615245), we get a palindrome (5889779885).

The spelling of 5425164640 in words is "five billion, four hundred twenty-five million, one hundred sixty-four thousand, six hundred forty".