1630535505 has 16 divisors (see below), whose sum is σ = 2653076160. Its totient is φ = 854879168.

The previous prime is 1630535497. The next prime is 1630535507. The reversal of 1630535505 is 5055350361.

It is a cyclic number.

It is not a de Polignac number, because 1630535505 - 2³ = 1630535497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1630535507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 920322 + ... + 922091.

It is an arithmetic number, because the mean of its divisors is an integer number (165817260).

Almost surely, 2^1630535505 is an apocalyptic number.

1630535505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1630535505 is a deficient number, since it is larger than the sum of its proper divisors (1022540655).

1630535505 is a wasteful number, since it uses less digits than its factorization.

1630535505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842480.

The product of its (nonzero) digits is 33750, while the sum is 33.

The square root of 1630535505 is about 40379.8898586908. The cubic root of 1630535505 is about 1177.0007872974. Note that the first 3 decimals are identical.

Adding to 1630535505 its reverse (5055350361), we get a palindrome (6685885866).

The spelling of 1630535505 in words is "one billion, six hundred thirty million, five hundred thirty-five thousand, five hundred five".