1630448255 has 8 divisors (see below), whose sum is σ = 2019652224. Its totient is φ = 1262282400.

The previous prime is 1630448251. The next prime is 1630448263. The reversal of 1630448255 is 5528440361.

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

It is not a de Polignac number, because 1630448255 - 2² = 1630448251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630448251) 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, 5259356 + ... + 5259665.

It is an arithmetic number, because the mean of its divisors is an integer number (252456528).

Almost surely, 2^1630448255 is an apocalyptic number.

1630448255 is a deficient number, since it is larger than the sum of its proper divisors (389203969).

1630448255 is a wasteful number, since it uses less digits than its factorization.

1630448255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10519057.

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 1630448255 is about 40378.8094797259. The cubic root of 1630448255 is about 1176.9797931414.

The spelling of 1630448255 in words is "one billion, six hundred thirty million, four hundred forty-eight thousand, two hundred fifty-five".