63425231 has 4 divisors (see below), whose sum is σ = 64774752. Its totient is φ = 62075712.

The previous prime is 63425221. The next prime is 63425239. The reversal of 63425231 is 13252436.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63425231 is a prime.

It is a super-2 number, since 2×63425231² = 8045519854806722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63425231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63425239) 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, 674690 + ... + 674783.

It is an arithmetic number, because the mean of its divisors is an integer number (16193688).

Almost surely, 2^63425231 is an apocalyptic number.

63425231 is a deficient number, since it is larger than the sum of its proper divisors (1349521).

63425231 is a wasteful number, since it uses less digits than its factorization.

63425231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349520.

The product of its digits is 4320, while the sum is 26.

The square root of 63425231 is about 7963.9959191351. The cubic root of 63425231 is about 398.7989619618.

Adding to 63425231 its reverse (13252436), we get a palindrome (76677667).

The spelling of 63425231 in words is "sixty-three million, four hundred twenty-five thousand, two hundred thirty-one".