52454438 has 4 divisors (see below), whose sum is σ = 78681660. Its totient is φ = 26227218.

The previous prime is 52454377. The next prime is 52454443. The reversal of 52454438 is 83445425.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52454398 and 52454407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13113608 + ... + 13113611.

It is an arithmetic number, because the mean of its divisors is an integer number (19670415).

Almost surely, 2^52454438 is an apocalyptic number.

52454438 is a deficient number, since it is larger than the sum of its proper divisors (26227222).

52454438 is a wasteful number, since it uses less digits than its factorization.

52454438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26227221.

The product of its digits is 76800, while the sum is 35.

The square root of 52454438 is about 7242.5436139522. The cubic root of 52454438 is about 374.3352680095.

Subtracting from 52454438 its sum of digits (35), we obtain a triangular number (52454403 = T₁₀₂₄₂).

The spelling of 52454438 in words is "fifty-two million, four hundred fifty-four thousand, four hundred thirty-eight".