26222556 has 24 divisors (see below), whose sum is σ = 61529104. Its totient is φ = 8691840.

The previous prime is 26222513. The next prime is 26222591. The reversal of 26222556 is 65522262.

26222556 = T₁₈₅ + T₁₈₆ + ... + T₅₄₆.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3865 + ... + 8208.

Almost surely, 2^26222556 is an apocalyptic number.

It is an amenable number.

26222556 is an abundant number, since it is smaller than the sum of its proper divisors (35306548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26222556 is a wasteful number, since it uses less digits than its factorization.

26222556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12261 (or 12259 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 26222556 is about 5120.7964224327. The cubic root of 26222556 is about 297.0924900982.

The spelling of 26222556 in words is "twenty-six million, two hundred twenty-two thousand, five hundred fifty-six".