56636398 has 16 divisors (see below), whose sum is σ = 104559840. Its totient is φ = 22405536.

The previous prime is 56636387. The next prime is 56636399. The reversal of 56636398 is 89363665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56636399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155413 + ... + 155776.

It is an arithmetic number, because the mean of its divisors is an integer number (6534990).

Almost surely, 2^56636398 is an apocalyptic number.

56636398 is a deficient number, since it is larger than the sum of its proper divisors (47923442).

56636398 is a wasteful number, since it uses less digits than its factorization.

56636398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311211.

The product of its digits is 699840, while the sum is 46.

The square root of 56636398 is about 7525.7157799109. The cubic root of 56636398 is about 384.0300495509.

The spelling of 56636398 in words is "fifty-six million, six hundred thirty-six thousand, three hundred ninety-eight".