5142445520 has 20 divisors (see below), whose sum is σ = 11956186020. Its totient is φ = 2056978176.

The previous prime is 5142445499. The next prime is 5142445523. The reversal of 5142445520 is 255442415.

It can be written as a sum of positive squares in 2 ways, for example, as 1006412176 + 4136033344 = 31724^2 + 64312^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5142445523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32140205 + ... + 32140364.

It is an arithmetic number, because the mean of its divisors is an integer number (597809301).

Almost surely, 2^5142445520 is an apocalyptic number.

It is an amenable number.

5142445520 is an abundant number, since it is smaller than the sum of its proper divisors (6813740500).

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

5142445520 is a wasteful number, since it uses less digits than its factorization.

5142445520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64280582 (or 64280576 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

The square root of 5142445520 is about 71710.8465993813. The cubic root of 5142445520 is about 1726.0626954629.

Adding to 5142445520 its reverse (255442415), we get a palindrome (5397887935).

The spelling of 5142445520 in words is "five billion, one hundred forty-two million, four hundred forty-five thousand, five hundred twenty".