52055391 has 16 divisors (see below), whose sum is σ = 70784000. Its totient is φ = 34021728.

The previous prime is 52055389. The next prime is 52055401. The reversal of 52055391 is 19355025.

It is not a de Polignac number, because 52055391 - 2¹ = 52055389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52055291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36510 + ... + 37908.

It is an arithmetic number, because the mean of its divisors is an integer number (4424000).

Almost surely, 2^52055391 is an apocalyptic number.

52055391 is a deficient number, since it is larger than the sum of its proper divisors (18728609).

52055391 is a wasteful number, since it uses less digits than its factorization.

52055391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638.

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 52055391 is about 7214.9422035107. The cubic root of 52055391 is about 373.3835991169.

The spelling of 52055391 in words is "fifty-two million, fifty-five thousand, three hundred ninety-one".