694555056 has 120 divisors (see below), whose sum is σ = 2101802976. Its totient is φ = 212843520.

The previous prime is 694555019. The next prime is 694555079. The reversal of 694555056 is 650555496.

694555056 is a `hidden beast` number, since 6 + 9 + 45 + 550 + 56 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 581596 + ... + 582788.

Almost surely, 2^694555056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 694555056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1050901488).

694555056 is an abundant number, since it is smaller than the sum of its proper divisors (1407247920).

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

694555056 is a wasteful number, since it uses less digits than its factorization.

694555056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531 (or 1522 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The square root of 694555056 is about 26354.4124578789. The cubic root of 694555056 is about 885.5958220830.

It can be divided in two parts, 6945 and 55056, that added together give a square (62001 = 249²).

The spelling of 694555056 in words is "six hundred ninety-four million, five hundred fifty-five thousand, fifty-six".