52991755 has 8 divisors (see below), whose sum is σ = 63644832. Its totient is φ = 42356928.

The previous prime is 52991717. The next prime is 52991759. The reversal of 52991755 is 55719925.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52991755 - 2¹¹ = 52989707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52991759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2959 + ... + 10711.

It is an arithmetic number, because the mean of its divisors is an integer number (7955604).

Almost surely, 2^52991755 is an apocalyptic number.

52991755 is a deficient number, since it is larger than the sum of its proper divisors (10653077).

52991755 is a wasteful number, since it uses less digits than its factorization.

52991755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9125.

The product of its digits is 141750, while the sum is 43.

The square root of 52991755 is about 7279.5435983309. The cubic root of 52991755 is about 375.6090960623.

The spelling of 52991755 in words is "fifty-two million, nine hundred ninety-one thousand, seven hundred fifty-five".