56196309 has 16 divisors (see below), whose sum is σ = 81043200. Its totient is φ = 34431936.

The previous prime is 56196307. The next prime is 56196331. The reversal of 56196309 is 90369165.

It is not a de Polignac number, because 56196309 - 2¹ = 56196307 is a prime.

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 (56196307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6307 + ... + 12335.

It is an arithmetic number, because the mean of its divisors is an integer number (5065200).

Almost surely, 2^56196309 is an apocalyptic number.

It is an amenable number.

56196309 is a deficient number, since it is larger than the sum of its proper divisors (24846891).

56196309 is a wasteful number, since it uses less digits than its factorization.

56196309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6284.

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 56196309 is about 7496.4197454518. The cubic root of 56196309 is about 383.0327694786.

The spelling of 56196309 in words is "fifty-six million, one hundred ninety-six thousand, three hundred nine".