1630553100 has 72 divisors (see below), whose sum is σ = 5146628928. Its totient is φ = 395284800.

The previous prime is 1630553083. The next prime is 1630553107. The reversal of 1630553100 is 13550361.

It is a super-2 number, since 2×1630553100² = 5317406823839220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1630553107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 243754 + ... + 250353.

Almost surely, 2^1630553100 is an apocalyptic number.

1630553100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1630553100 is an abundant number, since it is smaller than the sum of its proper divisors (3516075828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1630553100 is a wasteful number, since it uses less digits than its factorization.

1630553100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494135 (or 494128 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 1630553100 is about 40380.1077264536. The cubic root of 1630553100 is about 1177.0050209279.

The spelling of 1630553100 in words is "one billion, six hundred thirty million, five hundred fifty-three thousand, one hundred".