52212431 has 8 divisors (see below), whose sum is σ = 52962000. Its totient is φ = 51468480.

The previous prime is 52212427. The next prime is 52212487. The reversal of 52212431 is 13421225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52212431 - 2² = 52212427 is a prime.

It is a super-2 number, since 2×52212431² = 5452275901859522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52212131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19451 + ... + 21971.

It is an arithmetic number, because the mean of its divisors is an integer number (6620250).

Almost surely, 2^52212431 is an apocalyptic number.

52212431 is a deficient number, since it is larger than the sum of its proper divisors (749569).

52212431 is a wasteful number, since it uses less digits than its factorization.

52212431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809.

The product of its digits is 480, while the sum is 20.

The square root of 52212431 is about 7225.8169780309. The cubic root of 52212431 is about 373.7586950398.

Adding to 52212431 its reverse (13421225), we get a palindrome (65633656).

The spelling of 52212431 in words is "fifty-two million, two hundred twelve thousand, four hundred thirty-one".