55220546 has 8 divisors (see below), whose sum is σ = 82909884. Its totient is φ = 27583920.

The previous prime is 55220531. The next prime is 55220551. The reversal of 55220546 is 64502255.

It can be written as a sum of positive squares in 2 ways, for example, as 54390625 + 829921 = 7375^2 + 911^2 .

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10445 + ... + 14816.

Almost surely, 2^55220546 is an apocalyptic number.

55220546 is a deficient number, since it is larger than the sum of its proper divisors (27689338).

55220546 is a wasteful number, since it uses less digits than its factorization.

55220546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26356.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 55220546 is about 7431.0528190829. The cubic root of 55220546 is about 380.8028869049.

The spelling of 55220546 in words is "fifty-five million, two hundred twenty thousand, five hundred forty-six".