52420234 has 4 divisors (see below), whose sum is σ = 78630354. Its totient is φ = 26210116.

The previous prime is 52420229. The next prime is 52420237. The reversal of 52420234 is 43202425.

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

It can be written as a sum of positive squares in only one way, i.e., 28654609 + 23765625 = 5353^2 + 4875^2 .

It is a super-2 number, since 2×52420234² = 5495761865229512, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (52420237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13105057 + ... + 13105060.

Almost surely, 2^52420234 is an apocalyptic number.

52420234 is a deficient number, since it is larger than the sum of its proper divisors (26210120).

52420234 is a wasteful number, since it uses less digits than its factorization.

52420234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26210119.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 52420234 is about 7240.1819037922. The cubic root of 52420234 is about 374.2538859696.

Adding to 52420234 its reverse (43202425), we get a palindrome (95622659).

The spelling of 52420234 in words is "fifty-two million, four hundred twenty thousand, two hundred thirty-four".