425329811 has 2 divisors, whose sum is σ = 425329812. Its totient is φ = 425329810.

The previous prime is 425329787. The next prime is 425329819. The reversal of 425329811 is 118923524.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425329811 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (425329819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212664905 + 212664906.

It is an arithmetic number, because the mean of its divisors is an integer number (212664906).

Almost surely, 2^425329811 is an apocalyptic number.

425329811 is a deficient number, since it is larger than the sum of its proper divisors (1).

425329811 is an equidigital number, since it uses as much as digits as its factorization.

425329811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 35.

The square root of 425329811 is about 20623.5256685175. The cubic root of 425329811 is about 752.0417321368.

The spelling of 425329811 in words is "four hundred twenty-five million, three hundred twenty-nine thousand, eight hundred eleven".