5121560440 has 64 divisors (see below), whose sum is σ = 11597152320. Its totient is φ = 2035584000.

The previous prime is 5121560429. The next prime is 5121560459. The reversal of 5121560440 is 440651215.

It is a junction number, because it is equal to n+sod(n) for n = 5121560399 and 5121560408.

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, 6729660 + ... + 6730420.

It is an arithmetic number, because the mean of its divisors is an integer number (181205505).

Almost surely, 2^5121560440 is an apocalyptic number.

It is an amenable number.

5121560440 is an abundant number, since it is smaller than the sum of its proper divisors (6475591880).

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

5121560440 is a wasteful number, since it uses less digits than its factorization.

5121560440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624 (or 1620 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 5121560440 is about 71565.0783552984. The cubic root of 5121560440 is about 1723.7228314312.

The spelling of 5121560440 in words is "five billion, one hundred twenty-one million, five hundred sixty thousand, four hundred forty".