52312621 has 8 divisors (see below), whose sum is σ = 55909440. Its totient is φ = 48773568.

The previous prime is 52312619. The next prime is 52312669. The reversal of 52312621 is 12621325.

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 52312621 - 2¹ = 52312619 is a prime.

It is a super-2 number, since 2×52312621² = 5473220631779282, 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 = 52312592 and 52312601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52312021) 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, 12561 + ... + 16198.

It is an arithmetic number, because the mean of its divisors is an integer number (6988680).

Almost surely, 2^52312621 is an apocalyptic number.

It is an amenable number.

52312621 is a deficient number, since it is larger than the sum of its proper divisors (3596819).

52312621 is a wasteful number, since it uses less digits than its factorization.

52312621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28883.

The product of its digits is 720, while the sum is 22.

The square root of 52312621 is about 7232.7464354836. The cubic root of 52312621 is about 373.9976097724.

Adding to 52312621 its reverse (12621325), we get a palindrome (64933946).

The spelling of 52312621 in words is "fifty-two million, three hundred twelve thousand, six hundred twenty-one".