56150513 has 2 divisors, whose sum is σ = 56150514. Its totient is φ = 56150512.

The previous prime is 56150461. The next prime is 56150519. The reversal of 56150513 is 31505165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56130064 + 20449 = 7492^2 + 143^2 .

It is a cyclic number.

It is not a de Polignac number, because 56150513 - 2⁸ = 56150257 is a prime.

It is a super-2 number, since 2×56150513² = 6305760220326338, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (56150519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28075256 + 28075257.

It is an arithmetic number, because the mean of its divisors is an integer number (28075257).

Almost surely, 2^56150513 is an apocalyptic number.

It is an amenable number.

56150513 is a deficient number, since it is larger than the sum of its proper divisors (1).

56150513 is an equidigital number, since it uses as much as digits as its factorization.

56150513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 56150513 is about 7493.3645980961. The cubic root of 56150513 is about 382.9286930355.

Adding to 56150513 its reverse (31505165), we get a palindrome (87655678).

The spelling of 56150513 in words is "fifty-six million, one hundred fifty thousand, five hundred thirteen".