425520311 has 2 divisors, whose sum is σ = 425520312. Its totient is φ = 425520310.

The previous prime is 425520299. The next prime is 425520317. The reversal of 425520311 is 113025524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425520311 - 2¹⁰ = 425519287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425520317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212760155 + 212760156.

It is an arithmetic number, because the mean of its divisors is an integer number (212760156).

Almost surely, 2^425520311 is an apocalyptic number.

425520311 is a deficient number, since it is larger than the sum of its proper divisors (1).

425520311 is an equidigital number, since it uses as much as digits as its factorization.

425520311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 425520311 is about 20628.1436634516. The cubic root of 425520311 is about 752.1539921312.

Adding to 425520311 its reverse (113025524), we get a palindrome (538545835).

The spelling of 425520311 in words is "four hundred twenty-five million, five hundred twenty thousand, three hundred eleven".