55207047 has 16 divisors (see below), whose sum is σ = 84734720. Its totient is φ = 31318272.

The previous prime is 55206979. The next prime is 55207051. The reversal of 55207047 is 74070255.

It is not a de Polignac number, because 55207047 - 2⁷ = 55206919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55207057) 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, 6538 + ... + 12375.

It is an arithmetic number, because the mean of its divisors is an integer number (5295920).

Almost surely, 2^55207047 is an apocalyptic number.

55207047 is a deficient number, since it is larger than the sum of its proper divisors (29527673).

55207047 is a wasteful number, since it uses less digits than its factorization.

55207047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19062.

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 55207047 is about 7430.1444804257. The cubic root of 55207047 is about 380.7718545117.

The spelling of 55207047 in words is "fifty-five million, two hundred seven thousand, forty-seven".