56507071 has 2 divisors, whose sum is σ = 56507072. Its totient is φ = 56507070.

The previous prime is 56507057. The next prime is 56507081. The reversal of 56507071 is 17070565.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56507071 - 2⁷ = 56506943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56507081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28253535 + 28253536.

It is an arithmetic number, because the mean of its divisors is an integer number (28253536).

Almost surely, 2^56507071 is an apocalyptic number.

56507071 is a deficient number, since it is larger than the sum of its proper divisors (1).

56507071 is an equidigital number, since it uses as much as digits as its factorization.

56507071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 56507071 is about 7517.1185303945. The cubic root of 56507071 is about 383.7375209118.

It can be divided in two parts, 5650 and 7071, that added together give a palindrome (12721).

The spelling of 56507071 in words is "fifty-six million, five hundred seven thousand, seventy-one".