52221534 has 8 divisors (see below), whose sum is σ = 104443080. Its totient is φ = 17407176.

The previous prime is 52221527. The next prime is 52221553. The reversal of 52221534 is 43512225.

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

52221534 is an admirable number.

It is a super-2 number, since 2×52221534² = 5454177226626312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4351789 + ... + 4351800.

It is an arithmetic number, because the mean of its divisors is an integer number (13055385).

Almost surely, 2^52221534 is an apocalyptic number.

52221534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52221534 is a wasteful number, since it uses less digits than its factorization.

52221534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8703594.

The product of its digits is 2400, while the sum is 24.

The square root of 52221534 is about 7226.4468447502. The cubic root of 52221534 is about 373.7804148207.

Adding to 52221534 its reverse (43512225), we get a palindrome (95733759).

The spelling of 52221534 in words is "fifty-two million, two hundred twenty-one thousand, five hundred thirty-four".