67564056 has 64 divisors (see below), whose sum is σ = 194803200. Its totient is φ = 19127808.

The previous prime is 67564043. The next prime is 67564093. The reversal of 67564056 is 65046576.

It is a super-2 number, since 2×67564056² = 9129803326342272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17205 + ... + 20763.

It is an arithmetic number, because the mean of its divisors is an integer number (3043800).

Almost surely, 2^67564056 is an apocalyptic number.

67564056 is the 4746-th octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67564056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97401600).

67564056 is an abundant number, since it is smaller than the sum of its proper divisors (127239144).

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

67564056 is a wasteful number, since it uses less digits than its factorization.

67564056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3688 (or 3684 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 67564056 is about 8219.7357621763. The cubic root of 67564056 is about 407.2913978690.

The spelling of 67564056 in words is "sixty-seven million, five hundred sixty-four thousand, fifty-six".