425531345 has 4 divisors (see below), whose sum is σ = 510637620. Its totient is φ = 340425072.

The previous prime is 425531299. The next prime is 425531357. The reversal of 425531345 is 543135524.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 225930961 + 199600384 = 15031^2 + 14128^2 .

It is a cyclic number.

It is not a de Polignac number, because 425531345 - 2¹⁶ = 425465809 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42553130 + ... + 42553139.

It is an arithmetic number, because the mean of its divisors is an integer number (127659405).

Almost surely, 2^425531345 is an apocalyptic number.

It is an amenable number.

425531345 is a deficient number, since it is larger than the sum of its proper divisors (85106275).

425531345 is an equidigital number, since it uses as much as digits as its factorization.

425531345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85106274.

The product of its digits is 36000, while the sum is 32.

The square root of 425531345 is about 20628.4111118622. The cubic root of 425531345 is about 752.1604933449.

Adding to 425531345 its reverse (543135524), we get a palindrome (968666869).

The spelling of 425531345 in words is "four hundred twenty-five million, five hundred thirty-one thousand, three hundred forty-five".