56194124809 has 3 divisors (see below), whose sum is σ = 56194361863. Its totient is φ = 56193887756.

The previous prime is 56194124803. The next prime is 56194124813. The reversal of 56194124809 is 90842149165.

The square root of 56194124809 is 237053.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 90842149165 = 5 ⋅18168429833.

It can be written as a sum of positive squares in only one way, i.e., 24163148025 + 32030976784 = 155445^2 + 178972^2 .

It is not a de Polignac number, because 56194124809 - 2¹³ = 56194116617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56194124803) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 118527 + ... + 355579.

Almost surely, 2^56194124809 is an apocalyptic number.

56194124809 is the 237053-rd square number.

56194124809 is the 118527-th centered octagonal number.

It is an amenable number.

56194124809 is a deficient number, since it is larger than the sum of its proper divisors (237054).

56194124809 is an frugal number, since it uses more digits than its factorization.

56194124809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474106 (or 237053 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 49.

Multiplying 56194124809 by its sum of digits (49), we get a square (2753512115641 = 1659371²).

The spelling of 56194124809 in words is "fifty-six billion, one hundred ninety-four million, one hundred twenty-four thousand, eight hundred nine".