63426556 has 12 divisors (see below), whose sum is σ = 111056400. Its totient is φ = 31696160.

The previous prime is 63426533. The next prime is 63426569. The reversal of 63426556 is 65562436.

It is a super-2 number, since 2×63426556² = 8045856012042272, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7920 + ... + 13768.

It is an arithmetic number, because the mean of its divisors is an integer number (9254700).

Almost surely, 2^63426556 is an apocalyptic number.

It is an amenable number.

63426556 is a deficient number, since it is larger than the sum of its proper divisors (47629844).

63426556 is a wasteful number, since it uses less digits than its factorization.

63426556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8564 (or 8562 counting only the distinct ones).

The product of its digits is 129600, while the sum is 37.

The square root of 63426556 is about 7964.0791055840. The cubic root of 63426556 is about 398.8017390109.

The spelling of 63426556 in words is "sixty-three million, four hundred twenty-six thousand, five hundred fifty-six".