5321321040 has 80 divisors (see below), whose sum is σ = 18852686208. Its totient is φ = 1216301568.

The previous prime is 5321321029. The next prime is 5321321053. The reversal of 5321321040 is 401231235.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×5321321040² = 56632915221493363200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 5321320998 and 5321321016.

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, 1582047 + ... + 1585406.

Almost surely, 2^5321321040 is an apocalyptic number.

It is an amenable number.

5321321040 is an abundant number, since it is smaller than the sum of its proper divisors (13531365168).

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

5321321040 is a wasteful number, since it uses less digits than its factorization.

5321321040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3167476 (or 3167470 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 5321321040 is about 72947.3854226455. The cubic root of 5321321040 is about 1745.8482303468.

Adding to 5321321040 its reverse (401231235), we get a palindrome (5722552275).

The spelling of 5321321040 in words is "five billion, three hundred twenty-one million, three hundred twenty-one thousand, forty".