75913540 has 12 divisors (see below), whose sum is σ = 159418476. Its totient is φ = 30365408.

The previous prime is 75913511. The next prime is 75913597. The reversal of 75913540 is 4531957.

It can be written as a sum of positive squares in 2 ways, for example, as 19483396 + 56430144 = 4414^2 + 7512^2 .

It is a junction number, because it is equal to n+sod(n) for n = 75913496 and 75913505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1897819 + ... + 1897858.

It is an arithmetic number, because the mean of its divisors is an integer number (13284873).

Almost surely, 2^75913540 is an apocalyptic number.

It is an amenable number.

75913540 is an abundant number, since it is smaller than the sum of its proper divisors (83504936).

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

75913540 is a wasteful number, since it uses less digits than its factorization.

75913540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3795686 (or 3795684 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 75913540 is about 8712.8376548631. The cubic root of 75913540 is about 423.4216705865.

The spelling of 75913540 in words is "seventy-five million, nine hundred thirteen thousand, five hundred forty".