56747445 has 32 divisors (see below), whose sum is σ = 96888960. Its totient is φ = 28262400.
The previous prime is 56747441. The next prime is 56747447. The reversal of 56747445 is 54474765.
It is not a de Polignac number, because 56747445 - 22 = 56747441 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 56747397 and 56747406.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (56747441) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34645 + ... + 36245.
It is an arithmetic number, because the mean of its divisors is an integer number (3027780).
Almost surely, 256747445 is an apocalyptic number.
It is an amenable number.
56747445 is a deficient number, since it is larger than the sum of its proper divisors (40141515).
56747445 is a wasteful number, since it uses less digits than its factorization.
56747445 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1765.
The product of its digits is 470400, while the sum is 42.
The square root of 56747445 is about 7533.0900034448. The cubic root of 56747445 is about 384.2808749632.
The spelling of 56747445 in words is "fifty-six million, seven hundred forty-seven thousand, four hundred forty-five".
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