55470985 has 4 divisors (see below), whose sum is σ = 66565188. Its totient is φ = 44376784.

The previous prime is 55470979. The next prime is 55471001. The reversal of 55470985 is 58907455.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36626704 + 18844281 = 6052^2 + 4341^2 .

It is a cyclic number.

It is not a de Polignac number, because 55470985 - 2³ = 55470977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5547094 + ... + 5547103.

It is an arithmetic number, because the mean of its divisors is an integer number (16641297).

Almost surely, 2^55470985 is an apocalyptic number.

It is an amenable number.

55470985 is a deficient number, since it is larger than the sum of its proper divisors (11094203).

55470985 is a wasteful number, since it uses less digits than its factorization.

55470985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11094202.

The product of its (nonzero) digits is 252000, while the sum is 43.

The square root of 55470985 is about 7447.8845989986. The cubic root of 55470985 is about 381.3776976160.

The spelling of 55470985 in words is "fifty-five million, four hundred seventy thousand, nine hundred eighty-five".