69144056 has 16 divisors (see below), whose sum is σ = 130473240. Its totient is φ = 34351200.

The previous prime is 69144017. The next prime is 69144071. The reversal of 69144056 is 65044196.

It is a super-2 number, since 2×69144056² = 9561800960262272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26270 + ... + 28781.

Almost surely, 2^69144056 is an apocalyptic number.

It is an amenable number.

69144056 is a deficient number, since it is larger than the sum of its proper divisors (61329184).

69144056 is a wasteful number, since it uses less digits than its factorization.

69144056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55214 (or 55210 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 69144056 is about 8315.2904940236. The cubic root of 69144056 is about 410.4418318438.

The spelling of 69144056 in words is "sixty-nine million, one hundred forty-four thousand, fifty-six".