55245385 has 16 divisors (see below), whose sum is σ = 71769600. Its totient is φ = 40582080.

The previous prime is 55245383. The next prime is 55245397. The reversal of 55245385 is 58354255.

It is a happy number.

It is not a de Polignac number, because 55245385 - 2¹ = 55245383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55245383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10800 + ... + 15070.

It is an arithmetic number, because the mean of its divisors is an integer number (4485600).

Almost surely, 2^55245385 is an apocalyptic number.

It is an amenable number.

55245385 is a deficient number, since it is larger than the sum of its proper divisors (16524215).

55245385 is a wasteful number, since it uses less digits than its factorization.

55245385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4488.

The product of its digits is 120000, while the sum is 37.

The square root of 55245385 is about 7432.7239286819. The cubic root of 55245385 is about 380.8599752275.

The spelling of 55245385 in words is "fifty-five million, two hundred forty-five thousand, three hundred eighty-five".