56569422 has 144 divisors (see below), whose sum is σ = 153235152. Its totient is φ = 13789440.

The previous prime is 56569417. The next prime is 56569427. The reversal of 56569422 is 22496565.

It is an interprime number because it is at equal distance from previous prime (56569417) and next prime (56569427).

It is a super-3 number, since 3×56569422³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56569427) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1379722 + ... + 1379762.

It is an arithmetic number, because the mean of its divisors is an integer number (1064133).

Almost surely, 2^56569422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56569422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76617576).

56569422 is an abundant number, since it is smaller than the sum of its proper divisors (96665730).

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

56569422 is a wasteful number, since it uses less digits than its factorization.

56569422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 85 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

The square root of 56569422 is about 7521.2646542985. The cubic root of 56569422 is about 383.8786101764.

The spelling of 56569422 in words is "fifty-six million, five hundred sixty-nine thousand, four hundred twenty-two".