52220534 has 8 divisors (see below), whose sum is σ = 81736560. Its totient is φ = 24975016.

The previous prime is 52220479. The next prime is 52220543. The reversal of 52220534 is 43502225.

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

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

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, 567569 + ... + 567660.

It is an arithmetic number, because the mean of its divisors is an integer number (10217070).

Almost surely, 2^52220534 is an apocalyptic number.

52220534 is a deficient number, since it is larger than the sum of its proper divisors (29516026).

52220534 is a wasteful number, since it uses less digits than its factorization.

52220534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135254.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 52220534 is about 7226.3776541224. The cubic root of 52220534 is about 373.7780289416.

Adding to 52220534 its reverse (43502225), we get a palindrome (95722759).

The spelling of 52220534 in words is "fifty-two million, two hundred twenty thousand, five hundred thirty-four".