55011099 has 64 divisors (see below), whose sum is σ = 96284160. Its totient is φ = 27371520.

The previous prime is 55011091. The next prime is 55011109. The reversal of 55011099 is 99011055.

It is not a de Polignac number, because 55011099 - 2³ = 55011091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55011091) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 138369 + ... + 138765.

It is an arithmetic number, because the mean of its divisors is an integer number (1504440).

Almost surely, 2^55011099 is an apocalyptic number.

55011099 is a deficient number, since it is larger than the sum of its proper divisors (41273061).

55011099 is a wasteful number, since it uses less digits than its factorization.

55011099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460.

The product of its (nonzero) digits is 2025, while the sum is 30.

The square root of 55011099 is about 7416.9467437754. The cubic root of 55011099 is about 380.3208255491.

The spelling of 55011099 in words is "fifty-five million, eleven thousand, ninety-nine".