425777601 has 4 divisors (see below), whose sum is σ = 567703472. Its totient is φ = 283851732.

The previous prime is 425777581. The next prime is 425777617. The reversal of 425777601 is 106777524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 425777601 - 2²² = 421583297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 425777601.

It is not an unprimeable number, because it can be changed into a prime (425677601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70962931 + ... + 70962936.

It is an arithmetic number, because the mean of its divisors is an integer number (141925868).

Almost surely, 2^425777601 is an apocalyptic number.

It is an amenable number.

425777601 is a deficient number, since it is larger than the sum of its proper divisors (141925871).

425777601 is a wasteful number, since it uses less digits than its factorization.

425777601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141925870.

The product of its (nonzero) digits is 82320, while the sum is 39.

The square root of 425777601 is about 20634.3791038160. The cubic root of 425777601 is about 752.3055577201.

The spelling of 425777601 in words is "four hundred twenty-five million, seven hundred seventy-seven thousand, six hundred one".