52446431 has 4 divisors (see below), whose sum is σ = 52479000. Its totient is φ = 52413864.

The previous prime is 52446419. The next prime is 52446439. The reversal of 52446431 is 13464425.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52446431 is a prime.

It is a super-2 number, since 2×52446431² = 5501256249275522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52446394 and 52446403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52446439) 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, 13736 + ... + 17133.

It is an arithmetic number, because the mean of its divisors is an integer number (13119750).

Almost surely, 2^52446431 is an apocalyptic number.

52446431 is a deficient number, since it is larger than the sum of its proper divisors (32569).

52446431 is a wasteful number, since it uses less digits than its factorization.

52446431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32568.

The product of its digits is 11520, while the sum is 29.

The square root of 52446431 is about 7241.9908174479. The cubic root of 52446431 is about 374.3162200184.

The spelling of 52446431 in words is "fifty-two million, four hundred forty-six thousand, four hundred thirty-one".