55011207 has 8 divisors (see below), whose sum is σ = 73571200. Its totient is φ = 36562680.

The previous prime is 55011181. The next prime is 55011227. The reversal of 55011207 is 70211055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55011207 - 2⁷ = 55011079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55011227) 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, 26707 + ... + 28692.

It is an arithmetic number, because the mean of its divisors is an integer number (9196400).

Almost surely, 2^55011207 is an apocalyptic number.

55011207 is a deficient number, since it is larger than the sum of its proper divisors (18559993).

55011207 is a wasteful number, since it uses less digits than its factorization.

55011207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55733.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 55011207 is about 7416.9540243957. The cubic root of 55011207 is about 380.3210744360.

The spelling of 55011207 in words is "fifty-five million, eleven thousand, two hundred seven".