63256431 has 8 divisors (see below), whose sum is σ = 96390784. Its totient is φ = 36146520.

The previous prime is 63256393. The next prime is 63256433. The reversal of 63256431 is 13465236.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63256431 - 2⁹ = 63255919 is a prime.

It is a super-2 number, since 2×63256431² = 8002752125715522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63256433) 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 7 ways as a sum of consecutive naturals, for example, 1506085 + ... + 1506126.

It is an arithmetic number, because the mean of its divisors is an integer number (12048848).

Almost surely, 2^63256431 is an apocalyptic number.

63256431 is a deficient number, since it is larger than the sum of its proper divisors (33134353).

63256431 is a wasteful number, since it uses less digits than its factorization.

63256431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012221.

The product of its digits is 12960, while the sum is 30.

The square root of 63256431 is about 7953.3911635226. The cubic root of 63256431 is about 398.4448595980. Note that the first 3 decimals are identical.

The spelling of 63256431 in words is "sixty-three million, two hundred fifty-six thousand, four hundred thirty-one".