55422816 has 48 divisors (see below), whose sum is σ = 149043888. Its totient is φ = 18022400.

The previous prime is 55422811. The next prime is 55422817. The reversal of 55422816 is 61822455.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55422811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3105 + ... + 10976.

It is an arithmetic number, because the mean of its divisors is an integer number (3105081).

Almost surely, 2^55422816 is an apocalyptic number.

It is an amenable number.

55422816 is an abundant number, since it is smaller than the sum of its proper divisors (93621072).

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

55422816 is a wasteful number, since it uses less digits than its factorization.

55422816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14135 (or 14127 counting only the distinct ones).

The product of its digits is 19200, while the sum is 33.

The square root of 55422816 is about 7444.6501596784. The cubic root of 55422816 is about 381.2672741076.

The spelling of 55422816 in words is "fifty-five million, four hundred twenty-two thousand, eight hundred sixteen".