55615426 has 32 divisors (see below), whose sum is σ = 92049408.
Its totient is φ = 25114320.
The previous prime is 55615423. The next prime is 55615453. The reversal of 55615426 is 62451655.
55615426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×556154262 = 6186151218322952, which contains 22 as substring.
It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a junction number, because it is equal to n+sod(n) for n = 55615391 and 55615400.
It is not an unprimeable number, because it can be changed into a prime (55615423) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60865 + ... + 61771.
It is an arithmetic number, because the mean of its divisors is an integer number (2876544).
Almost surely, 255615426 is an apocalyptic number.
55615426 is a deficient number, since it is larger than the sum of its proper divisors (36433982).
55615426 is a wasteful number, since it uses less digits than its factorization.
55615426 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1006.
The product of its digits is 36000, while the sum is 34.
The square root of 55615426 is about 7457.5750750495.
The cubic root of 55615426 is about 381.7084340765.
The spelling of 55615426 in words is "fifty-five million, six hundred fifteen thousand, four hundred twenty-six".