63231755 has 12 divisors (see below), whose sum is σ = 80605920. Its totient is φ = 47608704.

The previous prime is 63231743. The next prime is 63231767. The reversal of 63231755 is 55713236.

It is an interprime number because it is at equal distance from previous prime (63231743) and next prime (63231767).

It is not a de Polignac number, because 63231755 - 2⁴ = 63231739 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20435 + ... + 23324.

It is an arithmetic number, because the mean of its divisors is an integer number (6717160).

Almost surely, 2^63231755 is an apocalyptic number.

63231755 is a deficient number, since it is larger than the sum of its proper divisors (17374165).

63231755 is a wasteful number, since it uses less digits than its factorization.

63231755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43798 (or 43781 counting only the distinct ones).

The product of its digits is 18900, while the sum is 32.

The square root of 63231755 is about 7951.8397242399. The cubic root of 63231755 is about 398.3930424470.

The spelling of 63231755 in words is "sixty-three million, two hundred thirty-one thousand, seven hundred fifty-five".