5120520451 has 2 divisors, whose sum is σ = 5120520452. Its totient is φ = 5120520450.

The previous prime is 5120520443. The next prime is 5120520481. The reversal of 5120520451 is 1540250215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5120520451 - 2³ = 5120520443 is a prime.

It is not a weakly prime, because it can be changed into another prime (5120520481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2560260225 + 2560260226.

It is an arithmetic number, because the mean of its divisors is an integer number (2560260226).

Almost surely, 2^5120520451 is an apocalyptic number.

5120520451 is a deficient number, since it is larger than the sum of its proper divisors (1).

5120520451 is an equidigital number, since it uses as much as digits as its factorization.

5120520451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 5120520451 is about 71557.8119495000. The cubic root of 5120520451 is about 1723.6061499265.

Adding to 5120520451 its reverse (1540250215), we get a palindrome (6660770666).

The spelling of 5120520451 in words is "five billion, one hundred twenty million, five hundred twenty thousand, four hundred fifty-one".