56126993 has 4 divisors (see below), whose sum is σ = 60444468. Its totient is φ = 51809520.

The previous prime is 56126981. The next prime is 56127023. The reversal of 56126993 is 39962165.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9778129 + 46348864 = 3127^2 + 6808^2 .

It is a cyclic number.

It is not a de Polignac number, because 56126993 - 2⁶ = 56126929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56126993.

It is not an unprimeable number, because it can be changed into a prime (56126933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2158718 + ... + 2158743.

It is an arithmetic number, because the mean of its divisors is an integer number (15111117).

Almost surely, 2^56126993 is an apocalyptic number.

It is an amenable number.

56126993 is a deficient number, since it is larger than the sum of its proper divisors (4317475).

56126993 is a wasteful number, since it uses less digits than its factorization.

56126993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4317474.

The product of its digits is 87480, while the sum is 41.

The square root of 56126993 is about 7491.7950452478. The cubic root of 56126993 is about 382.8752192547.

The spelling of 56126993 in words is "fifty-six million, one hundred twenty-six thousand, nine hundred ninety-three".