56073137 has 2 divisors, whose sum is σ = 56073138. Its totient is φ = 56073136.

The previous prime is 56073133. The next prime is 56073139. The reversal of 56073137 is 73137065.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45373696 + 10699441 = 6736^2 + 3271^2 .

It is a cyclic number.

It is not a de Polignac number, because 56073137 - 2² = 56073133 is a prime.

Together with 56073139, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56073131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28036568 + 28036569.

It is an arithmetic number, because the mean of its divisors is an integer number (28036569).

Almost surely, 2^56073137 is an apocalyptic number.

It is an amenable number.

56073137 is a deficient number, since it is larger than the sum of its proper divisors (1).

56073137 is an equidigital number, since it uses as much as digits as its factorization.

56073137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13230, while the sum is 32.

The square root of 56073137 is about 7488.1998504313. The cubic root of 56073137 is about 382.7527189181.

The spelling of 56073137 in words is "fifty-six million, seventy-three thousand, one hundred thirty-seven".