425552431 has 4 divisors (see below), whose sum is σ = 429684112. Its totient is φ = 421420752.

The previous prime is 425552401. The next prime is 425552441. The reversal of 425552431 is 134255524.

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 425552431 - 2⁵ = 425552399 is a prime.

It is a super-2 number, since 2×425552431² = 362189743060019522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425552393 and 425552402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425552401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2065686 + ... + 2065891.

It is an arithmetic number, because the mean of its divisors is an integer number (107421028).

Almost surely, 2^425552431 is an apocalyptic number.

425552431 is a deficient number, since it is larger than the sum of its proper divisors (4131681).

425552431 is a wasteful number, since it uses less digits than its factorization.

425552431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4131680.

The product of its digits is 24000, while the sum is 31.

The square root of 425552431 is about 20628.9221967605. The cubic root of 425552431 is about 752.1729168670.

The spelling of 425552431 in words is "four hundred twenty-five million, five hundred fifty-two thousand, four hundred thirty-one".