55212856 has 32 divisors (see below), whose sum is σ = 106550640. Its totient is φ = 26810368.

The previous prime is 55212823. The next prime is 55212877. The reversal of 55212856 is 65821255.

It is a congruent number.

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, 44760 + ... + 45976.

Almost surely, 2^55212856 is an apocalyptic number.

It is an amenable number.

55212856 is a deficient number, since it is larger than the sum of its proper divisors (51337784).

55212856 is a wasteful number, since it uses less digits than its factorization.

55212856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383 (or 1379 counting only the distinct ones).

The product of its digits is 24000, while the sum is 34.

The square root of 55212856 is about 7430.5353777504. The cubic root of 55212856 is about 380.7852092447.

The spelling of 55212856 in words is "fifty-five million, two hundred twelve thousand, eight hundred fifty-six".