52128374 has 4 divisors (see below), whose sum is σ = 78192564. Its totient is φ = 26064186.

The previous prime is 52128361. The next prime is 52128379. The reversal of 52128374 is 47382125.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 52128374.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52128379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13032092 + ... + 13032095.

It is an arithmetic number, because the mean of its divisors is an integer number (19548141).

Almost surely, 2^52128374 is an apocalyptic number.

52128374 is a deficient number, since it is larger than the sum of its proper divisors (26064190).

52128374 is a wasteful number, since it uses less digits than its factorization.

52128374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26064189.

The product of its digits is 13440, while the sum is 32.

The square root of 52128374 is about 7219.9981994458. The cubic root of 52128374 is about 373.5580154405.

The spelling of 52128374 in words is "fifty-two million, one hundred twenty-eight thousand, three hundred seventy-four".