5240664540 has 72 divisors (see below), whose sum is σ = 16587855648. Its totient is φ = 1336748160.

The previous prime is 5240664529. The next prime is 5240664551. The reversal of 5240664540 is 454660425.

5240664540 is a `hidden beast` number, since 5 + 2 + 4 + 0 + 6 + 645 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (5240664529) and next prime (5240664551).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5240664495 and 5240664504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 628791 + ... + 637070.

It is an arithmetic number, because the mean of its divisors is an integer number (230386884).

Almost surely, 2^5240664540 is an apocalyptic number.

It is an amenable number.

5240664540 is an abundant number, since it is smaller than the sum of its proper divisors (11347191108).

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

5240664540 is a wasteful number, since it uses less digits than its factorization.

5240664540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265899 (or 1265894 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The square root of 5240664540 is about 72392.4342732029. The cubic root of 5240664540 is about 1736.9825427315.

The spelling of 5240664540 in words is "five billion, two hundred forty million, six hundred sixty-four thousand, five hundred forty".