55810005 has 8 divisors (see below), whose sum is σ = 89296032. Its totient is φ = 29765328.

The previous prime is 55809991. The next prime is 55810021. The reversal of 55810005 is 50001855.

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

It is not a de Polignac number, because 55810005 - 2⁴ = 55809989 is a prime.

It is a super-2 number, since 2×55810005² = 6229513316200050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1860319 + ... + 1860348.

It is an arithmetic number, because the mean of its divisors is an integer number (11162004).

Almost surely, 2^55810005 is an apocalyptic number.

It is an amenable number.

55810005 is a deficient number, since it is larger than the sum of its proper divisors (33486027).

55810005 is a wasteful number, since it uses less digits than its factorization.

55810005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720675.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 55810005 is about 7470.6094128926. The cubic root of 55810005 is about 382.1530708790.

The spelling of 55810005 in words is "fifty-five million, eight hundred ten thousand, five".