631201255 has 8 divisors (see below), whose sum is σ = 757598400. Its totient is φ = 504856416.

The previous prime is 631201253. The next prime is 631201297. The reversal of 631201255 is 552102136.

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 631201255 - 2¹ = 631201253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631201253) 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, 22066 + ... + 41824.

It is an arithmetic number, because the mean of its divisors is an integer number (94699800).

Almost surely, 2^631201255 is an apocalyptic number.

631201255 is a deficient number, since it is larger than the sum of its proper divisors (126397145).

631201255 is a wasteful number, since it uses less digits than its factorization.

631201255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26153.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 631201255 is about 25123.7189723178. The cubic root of 631201255 is about 857.8064047939.

The spelling of 631201255 in words is "six hundred thirty-one million, two hundred one thousand, two hundred fifty-five".