55117037 has 4 divisors (see below), whose sum is σ = 55487100. Its totient is φ = 54746976.

The previous prime is 55117031. The next prime is 55117123. The reversal of 55117037 is 73071155.

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 5470921 + 49646116 = 2339^2 + 7046^2 .

It is a cyclic number.

It is not a de Polignac number, because 55117037 - 2⁶ = 55116973 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 (55117031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184808 + ... + 185105.

It is an arithmetic number, because the mean of its divisors is an integer number (13871775).

Almost surely, 2^55117037 is an apocalyptic number.

It is an amenable number.

55117037 is a deficient number, since it is larger than the sum of its proper divisors (370063).

55117037 is a wasteful number, since it uses less digits than its factorization.

55117037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370062.

The product of its (nonzero) digits is 3675, while the sum is 29.

The square root of 55117037 is about 7424.0849267772. The cubic root of 55117037 is about 380.5648041449.

The spelling of 55117037 in words is "fifty-five million, one hundred seventeen thousand, thirty-seven".