55806670 has 8 divisors (see below), whose sum is σ = 100452024. Its totient is φ = 22322664.

The previous prime is 55806661. The next prime is 55806679. The reversal of 55806670 is 7660855.

It is an interprime number because it is at equal distance from previous prime (55806661) and next prime (55806679).

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

It is a super-2 number, since 2×55806670² = 6228768832977800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55806679) 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, 2790324 + ... + 2790343.

It is an arithmetic number, because the mean of its divisors is an integer number (12556503).

Almost surely, 2^55806670 is an apocalyptic number.

55806670 is a deficient number, since it is larger than the sum of its proper divisors (44645354).

55806670 is a wasteful number, since it uses less digits than its factorization.

55806670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5580674.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 55806670 is about 7470.3862015293. The cubic root of 55806670 is about 382.1454587081.

The spelling of 55806670 in words is "fifty-five million, eight hundred six thousand, six hundred seventy".