50552591 has 4 divisors (see below), whose sum is σ = 51381384. Its totient is φ = 49723800.

The previous prime is 50552581. The next prime is 50552603. The reversal of 50552591 is 19525505.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50552591 - 2⁶ = 50552527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50552501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414305 + ... + 414426.

It is an arithmetic number, because the mean of its divisors is an integer number (12845346).

Almost surely, 2^50552591 is an apocalyptic number.

50552591 is a deficient number, since it is larger than the sum of its proper divisors (828793).

50552591 is an equidigital number, since it uses as much as digits as its factorization.

50552591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828792.

The product of its (nonzero) digits is 11250, while the sum is 32.

The square root of 50552591 is about 7110.0345287488. The cubic root of 50552591 is about 369.7553556859.

The spelling of 50552591 in words is "fifty million, five hundred fifty-two thousand, five hundred ninety-one".