55445806 has 48 divisors (see below), whose sum is σ = 97788096. Its totient is φ = 23422464.

The previous prime is 55445773. The next prime is 55445807. The reversal of 55445806 is 60854455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55445807) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 353080 + ... + 353236.

It is an arithmetic number, because the mean of its divisors is an integer number (2037252).

Almost surely, 2^55445806 is an apocalyptic number.

55445806 is a deficient number, since it is larger than the sum of its proper divisors (42342290).

55445806 is a wasteful number, since it uses less digits than its factorization.

55445806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 37.

The square root of 55445806 is about 7446.1940613981. The cubic root of 55445806 is about 381.3199847874.

It can be divided in two parts, 554 and 45806, that added together give a triangular number (46360 = T₃₀₄).

The spelling of 55445806 in words is "fifty-five million, four hundred forty-five thousand, eight hundred six".