55649946 has 16 divisors (see below), whose sum is σ = 121418208. Its totient is φ = 16863600.

The previous prime is 55649899. The next prime is 55649981. The reversal of 55649946 is 64994655.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55649895 and 55649904.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421525 + ... + 421656.

It is an arithmetic number, because the mean of its divisors is an integer number (7588638).

Almost surely, 2^55649946 is an apocalyptic number.

55649946 is an abundant number, since it is smaller than the sum of its proper divisors (65768262).

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

55649946 is a wasteful number, since it uses less digits than its factorization.

55649946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843197.

The product of its digits is 1166400, while the sum is 48.

The square root of 55649946 is about 7459.8891412674. The cubic root of 55649946 is about 381.7873920853.

The spelling of 55649946 in words is "fifty-five million, six hundred forty-nine thousand, nine hundred forty-six".