5249569820 has 48 divisors (see below), whose sum is σ = 12050640000. Its totient is φ = 1905069120.

The previous prime is 5249569789. The next prime is 5249569823. The reversal of 5249569820 is 289659425.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5249569823) 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, 85871 + ... + 133689.

It is an arithmetic number, because the mean of its divisors is an integer number (251055000).

Almost surely, 2^5249569820 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 5249569820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6025320000).

5249569820 is an abundant number, since it is smaller than the sum of its proper divisors (6801070180).

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

5249569820 is a wasteful number, since it uses less digits than its factorization.

5249569820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48338 (or 48336 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 50.

The square root of 5249569820 is about 72453.9151461120. The cubic root of 5249569820 is about 1737.9658507611.

The spelling of 5249569820 in words is "five billion, two hundred forty-nine million, five hundred sixty-nine thousand, eight hundred twenty".