52400093 has 4 divisors (see below), whose sum is σ = 53388828. Its totient is φ = 51411360.

The previous prime is 52400087. The next prime is 52400149. The reversal of 52400093 is 39000425.

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

It can be written as a sum of positive squares in 2 ways, for example, as 38464804 + 13935289 = 6202^2 + 3733^2 .

It is a cyclic number.

It is not a de Polignac number, because 52400093 - 2¹⁸ = 52137949 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 (52400893) 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, 494288 + ... + 494393.

It is an arithmetic number, because the mean of its divisors is an integer number (13347207).

Almost surely, 2^52400093 is an apocalyptic number.

52400093 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

52400093 is a deficient number, since it is larger than the sum of its proper divisors (988735).

52400093 is an equidigital number, since it uses as much as digits as its factorization.

52400093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988734.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 52400093 is about 7238.7908520691. The cubic root of 52400093 is about 374.2059476543.

The spelling of 52400093 in words is "fifty-two million, four hundred thousand, ninety-three".