55211064 has 32 divisors (see below), whose sum is σ = 138568320. Its totient is φ = 18331616.

The previous prime is 55211029. The next prime is 55211069. The reversal of 55211064 is 46011255.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55211069) 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, 1939 + ... + 10685.

It is an arithmetic number, because the mean of its divisors is an integer number (4330260).

Almost surely, 2^55211064 is an apocalyptic number.

It is an amenable number.

55211064 is an abundant number, since it is smaller than the sum of its proper divisors (83357256).

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

55211064 is a wasteful number, since it uses less digits than its factorization.

55211064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9019 (or 9015 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 55211064 is about 7430.4147932669. The cubic root of 55211064 is about 380.7810895854.

The spelling of 55211064 in words is "fifty-five million, two hundred eleven thousand, sixty-four".