55966826 has 4 divisors (see below), whose sum is σ = 83950242. Its totient is φ = 27983412.

The previous prime is 55966819. The next prime is 55966853. The reversal of 55966826 is 62866955.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62866955 = 5 ⋅12573391.

It can be written as a sum of positive squares in only one way, i.e., 51825601 + 4141225 = 7199^2 + 2035^2 .

It is a super-2 number, since 2×55966826² = 6264571225028552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13991705 + ... + 13991708.

Almost surely, 2^55966826 is an apocalyptic number.

55966826 is a deficient number, since it is larger than the sum of its proper divisors (27983416).

55966826 is a wasteful number, since it uses less digits than its factorization.

55966826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27983415.

The product of its digits is 777600, while the sum is 47.

The square root of 55966826 is about 7481.0979140765. The cubic root of 55966826 is about 382.5106745138.

The spelling of 55966826 in words is "fifty-five million, nine hundred sixty-six thousand, eight hundred twenty-six".