663225031 has 8 divisors (see below), whose sum is σ = 760264064. Its totient is φ = 566759160.

The previous prime is 663224981. The next prime is 663225047. The reversal of 663225031 is 130522366.

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 663225031 - 2²³ = 654836423 is a prime.

It is a super-2 number, since 2×663225031² = 879734883489901922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663225071) 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, 140805 + ... + 145438.

It is an arithmetic number, because the mean of its divisors is an integer number (95033008).

Almost surely, 2^663225031 is an apocalyptic number.

663225031 is a deficient number, since it is larger than the sum of its proper divisors (97039033).

663225031 is a wasteful number, since it uses less digits than its factorization.

663225031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286581.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 663225031 is about 25753.1557483738. The cubic root of 663225031 is about 872.0745975902.

Adding to 663225031 its reverse (130522366), we get a palindrome (793747397).

The spelling of 663225031 in words is "six hundred sixty-three million, two hundred twenty-five thousand, thirty-one".