52210405 has 8 divisors (see below), whose sum is σ = 67471992. Its totient is φ = 38555328.

The previous prime is 52210393. The next prime is 52210409. The reversal of 52210405 is 50401225.

It can be written as a sum of positive squares in 4 ways, for example, as 125316 + 52085089 = 354^2 + 7217^2 .

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 52210405 - 2⁹ = 52209893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52210409) 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, 401554 + ... + 401683.

It is an arithmetic number, because the mean of its divisors is an integer number (8433999).

Almost surely, 2^52210405 is an apocalyptic number.

It is an amenable number.

52210405 is a deficient number, since it is larger than the sum of its proper divisors (15261587).

52210405 is a wasteful number, since it uses less digits than its factorization.

52210405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803255.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 52210405 is about 7225.6767849109. The cubic root of 52210405 is about 373.7538606552.

The spelling of 52210405 in words is "fifty-two million, two hundred ten thousand, four hundred five".