55226661 has 8 divisors (see below), whose sum is σ = 84154944. Its totient is φ = 31558080.

The previous prime is 55226653. The next prime is 55226669. The reversal of 55226661 is 16662255.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55226653) and next prime (55226669).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55226661 - 2³ = 55226653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55226669) 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, 1314900 + ... + 1314941.

It is an arithmetic number, because the mean of its divisors is an integer number (10519368).

Almost surely, 2^55226661 is an apocalyptic number.

It is an amenable number.

55226661 is a deficient number, since it is larger than the sum of its proper divisors (28928283).

55226661 is a wasteful number, since it uses less digits than its factorization.

55226661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2629851.

The product of its digits is 21600, while the sum is 33.

The square root of 55226661 is about 7431.4642567935. The cubic root of 55226661 is about 380.8169428067.

The spelling of 55226661 in words is "fifty-five million, two hundred twenty-six thousand, six hundred sixty-one".