5215742020 has 48 divisors (see below), whose sum is σ = 11295774000. Its totient is φ = 2021703680.

The previous prime is 5215742011. The next prime is 5215742023. The reversal of 5215742020 is 202475125.

It can be written as a sum of positive squares in 8 ways, for example, as 1859161924 + 3356580096 = 43118^2 + 57936^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5215742020.

It is not an unprimeable number, because it can be changed into a prime (5215742023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100836 + ... + 143524.

It is an arithmetic number, because the mean of its divisors is an integer number (235328625).

Almost surely, 2^5215742020 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 5215742020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5647887000).

5215742020 is an abundant number, since it is smaller than the sum of its proper divisors (6080031980).

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

5215742020 is a wasteful number, since it uses less digits than its factorization.

5215742020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42888 (or 42886 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 5215742020 is about 72220.0942951475. The cubic root of 5215742020 is about 1734.2246999024.

The spelling of 5215742020 in words is "five billion, two hundred fifteen million, seven hundred forty-two thousand, twenty".