27805055530 has 32 divisors (see below), whose sum is σ = 57300649344. Its totient is φ = 9516215616.

The previous prime is 27805055513. The next prime is 27805055561. The reversal of 27805055530 is 3555050872.

It is a happy number.

It is a super-2 number, since 2×27805055530² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313357 + ... + 392176.

It is an arithmetic number, because the mean of its divisors is an integer number (1790645292).

Almost surely, 2^27805055530 is an apocalyptic number.

27805055530 is an abundant number, since it is smaller than the sum of its proper divisors (29495593814).

27805055530 is a wasteful number, since it uses less digits than its factorization.

27805055530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706110.

The product of its (nonzero) digits is 210000, while the sum is 40.

The spelling of 27805055530 in words is "twenty-seven billion, eight hundred five million, fifty-five thousand, five hundred thirty".