52215554 has 8 divisors (see below), whose sum is σ = 78382080. Its totient is φ = 26088196.

The previous prime is 52215529. The next prime is 52215607. The reversal of 52215554 is 45551225.

52215554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6194 + ... + 11949.

It is an arithmetic number, because the mean of its divisors is an integer number (9797760).

Almost surely, 2^52215554 is an apocalyptic number.

52215554 is a deficient number, since it is larger than the sum of its proper divisors (26166526).

52215554 is a wasteful number, since it uses less digits than its factorization.

52215554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19584.

The product of its digits is 10000, while the sum is 29.

The square root of 52215554 is about 7226.0330749312. The cubic root of 52215554 is about 373.7661468101.

Adding to 52215554 its reverse (45551225), we get a palindrome (97766779).

The spelling of 52215554 in words is "fifty-two million, two hundred fifteen thousand, five hundred fifty-four".