55215243446 has 12 divisors (see below), whose sum is σ = 91036703436. Its totient is φ = 25097837820.

The previous prime is 55215243439. The next prime is 55215243487. The reversal of 55215243446 is 64434251255.

55215243446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 5 ways as a sum of consecutive naturals, for example, 114080840 + ... + 114081323.

It is an arithmetic number, because the mean of its divisors is an integer number (7586391953).

Almost surely, 2^55215243446 is an apocalyptic number.

55215243446 is a deficient number, since it is larger than the sum of its proper divisors (35821459990).

55215243446 is a wasteful number, since it uses less digits than its factorization.

55215243446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228162187 (or 228162176 counting only the distinct ones).

The product of its digits is 576000, while the sum is 41.

The spelling of 55215243446 in words is "fifty-five billion, two hundred fifteen million, two hundred forty-three thousand, four hundred forty-six".