55266826 has 32 divisors (see below), whose sum is σ = 88186752. Its totient is φ = 25945920.

The previous prime is 55266823. The next prime is 55266829. The reversal of 55266826 is 62866255.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55266823) and next prime (55266829).

It is a super-2 number, since 2×55266826² = 6108844112228552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55266823) 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, 351940 + ... + 352096.

It is an arithmetic number, because the mean of its divisors is an integer number (2755836).

Almost surely, 2^55266826 is an apocalyptic number.

55266826 is a deficient number, since it is larger than the sum of its proper divisors (32919926).

55266826 is a wasteful number, since it uses less digits than its factorization.

55266826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334.

The product of its digits is 172800, while the sum is 40.

The square root of 55266826 is about 7434.1661267421. The cubic root of 55266826 is about 380.9092400517.

The spelling of 55266826 in words is "fifty-five million, two hundred sixty-six thousand, eight hundred twenty-six".