425381563 has 8 divisors (see below), whose sum is σ = 444285360. Its totient is φ = 406867680.

The previous prime is 425381549. The next prime is 425381581. The reversal of 425381563 is 365183524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 425381563 - 2⁹ = 425381051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425381533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95248 + ... + 99613.

It is an arithmetic number, because the mean of its divisors is an integer number (55535670).

Almost surely, 2^425381563 is an apocalyptic number.

425381563 is a deficient number, since it is larger than the sum of its proper divisors (18903797).

425381563 is a wasteful number, since it uses less digits than its factorization.

425381563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194957.

The product of its digits is 86400, while the sum is 37.

The square root of 425381563 is about 20624.7803139815. The cubic root of 425381563 is about 752.0722324563.

The spelling of 425381563 in words is "four hundred twenty-five million, three hundred eighty-one thousand, five hundred sixty-three".