425770901 has 2 divisors, whose sum is σ = 425770902. Its totient is φ = 425770900.

The previous prime is 425770843. The next prime is 425770903. The reversal of 425770901 is 109077524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 399000625 + 26770276 = 19975^2 + 5174^2 .

It is a cyclic number.

It is not a de Polignac number, because 425770901 - 2¹⁸ = 425508757 is a prime.

Together with 425770903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425770903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212885450 + 212885451.

It is an arithmetic number, because the mean of its divisors is an integer number (212885451).

Almost surely, 2^425770901 is an apocalyptic number.

It is an amenable number.

425770901 is a deficient number, since it is larger than the sum of its proper divisors (1).

425770901 is an equidigital number, since it uses as much as digits as its factorization.

425770901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 425770901 is about 20634.2167527629. The cubic root of 425770901 is about 752.3016116274.

The spelling of 425770901 in words is "four hundred twenty-five million, seven hundred seventy thousand, nine hundred one".