5211504020 has 48 divisors (see below), whose sum is σ = 11901148560. Its totient is φ = 1908946944.

The previous prime is 5211504019. The next prime is 5211504047. The reversal of 5211504020 is 204051125.

It can be written as a sum of positive squares in 8 ways, for example, as 1491967876 + 3719536144 = 38626^2 + 60988^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 5211503983 and 5211504001.

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, 194555 + ... + 219714.

It is an arithmetic number, because the mean of its divisors is an integer number (247940595).

Almost surely, 2^5211504020 is an apocalyptic number.

It is an amenable number.

5211504020 is an abundant number, since it is smaller than the sum of its proper divisors (6689644540).

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

5211504020 is a wasteful number, since it uses less digits than its factorization.

5211504020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414332 (or 414330 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 5211504020 is about 72190.7474680793. The cubic root of 5211504020 is about 1733.7548635381.

Adding to 5211504020 its reverse (204051125), we get a palindrome (5415555145).

The spelling of 5211504020 in words is "five billion, two hundred eleven million, five hundred four thousand, twenty".