55518093 has 24 divisors (see below), whose sum is σ = 85215000. Its totient is φ = 34763904.

The previous prime is 55518077. The next prime is 55518101. The reversal of 55518093 is 39081555.

It is a happy number.

55518093 is a `hidden beast` number, since 55 + 518 + 0 + 93 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5008644 + 50509449 = 2238^2 + 7107^2 .

It is not a de Polignac number, because 55518093 - 2⁴ = 55518077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55518053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6783 + ... + 12531.

It is an arithmetic number, because the mean of its divisors is an integer number (3550625).

Almost surely, 2^55518093 is an apocalyptic number.

It is an amenable number.

55518093 is a deficient number, since it is larger than the sum of its proper divisors (29696907).

55518093 is a wasteful number, since it uses less digits than its factorization.

55518093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5821 (or 5818 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 55518093 is about 7451.0464365752. The cubic root of 55518093 is about 381.4856270569.

The spelling of 55518093 in words is "fifty-five million, five hundred eighteen thousand, ninety-three".