55770005 has 8 divisors (see below), whose sum is σ = 67550112. Its totient is φ = 44198608.

The previous prime is 55769999. The next prime is 55770007. The reversal of 55770005 is 50007755.

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

It is a cyclic number.

It is not a de Polignac number, because 55770005 - 2¹⁶ = 55704469 is a prime.

It is a super-2 number, since 2×55770005² = 6220586915400050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55770005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55770007) 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, 51587 + ... + 52656.

It is an arithmetic number, because the mean of its divisors is an integer number (8443764).

Almost surely, 2^55770005 is an apocalyptic number.

It is an amenable number.

55770005 is a deficient number, since it is larger than the sum of its proper divisors (11780107).

55770005 is a wasteful number, since it uses less digits than its factorization.

55770005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104355.

The product of its (nonzero) digits is 6125, while the sum is 29.

The square root of 55770005 is about 7467.9317752642. The cubic root of 55770005 is about 382.0617504773.

The spelling of 55770005 in words is "fifty-five million, seven hundred seventy thousand, five".