425015231 has 4 divisors (see below), whose sum is σ = 425056464. Its totient is φ = 424974000.

The previous prime is 425015209. The next prime is 425015233. The reversal of 425015231 is 132510524.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425015231 is a prime.

It is a super-2 number, since 2×425015231² = 361275893163966722, 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 = 425015197 and 425015206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425015233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10211 + ... + 30891.

It is an arithmetic number, because the mean of its divisors is an integer number (106264116).

Almost surely, 2^425015231 is an apocalyptic number.

425015231 is a deficient number, since it is larger than the sum of its proper divisors (41233).

425015231 is a wasteful number, since it uses less digits than its factorization.

425015231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41232.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 425015231 is about 20615.8975307892. The cubic root of 425015231 is about 751.8562794746.

Adding to 425015231 its reverse (132510524), we get a palindrome (557525755).

The spelling of 425015231 in words is "four hundred twenty-five million, fifteen thousand, two hundred thirty-one".