425708851 has 4 divisors (see below), whose sum is σ = 448114600. Its totient is φ = 403303104.

The previous prime is 425708807. The next prime is 425708873. The reversal of 425708851 is 158807524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 425708851 - 2¹³ = 425700659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425708251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11202846 + ... + 11202883.

It is an arithmetic number, because the mean of its divisors is an integer number (112028650).

Almost surely, 2^425708851 is an apocalyptic number.

425708851 is a deficient number, since it is larger than the sum of its proper divisors (22405749).

425708851 is a wasteful number, since it uses less digits than its factorization.

425708851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22405748.

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 425708851 is about 20632.7131274585. The cubic root of 425708851 is about 752.2650641299.

The spelling of 425708851 in words is "four hundred twenty-five million, seven hundred eight thousand, eight hundred fifty-one".