55161826 has 16 divisors (see below), whose sum is σ = 87242400. Its totient is φ = 26085888.

The previous prime is 55161823. The next prime is 55161853. The reversal of 55161826 is 62816155.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55161791 and 55161800.

It is not an unprimeable number, because it can be changed into a prime (55161823) 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, 43185 + ... + 44443.

It is an arithmetic number, because the mean of its divisors is an integer number (5452650).

Almost surely, 2^55161826 is an apocalyptic number.

55161826 is a deficient number, since it is larger than the sum of its proper divisors (32080574).

55161826 is a wasteful number, since it uses less digits than its factorization.

55161826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433.

The product of its digits is 14400, while the sum is 34.

The square root of 55161826 is about 7427.1007802507. The cubic root of 55161826 is about 380.6678606164.

The spelling of 55161826 in words is "fifty-five million, one hundred sixty-one thousand, eight hundred twenty-six".