55026111 has 16 divisors (see below), whose sum is σ = 85800704. Its totient is φ = 30711744.

The previous prime is 55026089. The next prime is 55026131. The reversal of 55026111 is 11162055.

It is not a de Polignac number, because 55026111 - 2⁶ = 55026047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55026131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29566 + ... + 31371.

It is an arithmetic number, because the mean of its divisors is an integer number (5362544).

Almost surely, 2^55026111 is an apocalyptic number.

55026111 is a deficient number, since it is larger than the sum of its proper divisors (30774593).

55026111 is a wasteful number, since it uses less digits than its factorization.

55026111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60990.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 55026111 is about 7417.9586814703. The cubic root of 55026111 is about 380.3554177016.

Adding to 55026111 its reverse (11162055), we get a palindrome (66188166).

The spelling of 55026111 in words is "fifty-five million, twenty-six thousand, one hundred eleven".