1553901696 has 48 divisors (see below), whose sum is σ = 4471517310. Its totient is φ = 517966848.

The previous prime is 1553901653. The next prime is 1553901697. The reversal of 1553901696 is 6961093551.

1553901696 is a `hidden beast` number, since 1 + 553 + 9 + 0 + 1 + 6 + 96 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1521000000 + 32901696 = 39000^2 + 5736^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1553901696² = 4829220961663352832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1553901697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 673285 + ... + 675588.

Almost surely, 2^1553901696 is an apocalyptic number.

1553901696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1553901696 is an abundant number, since it is smaller than the sum of its proper divisors (2917615614).

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

1553901696 is a wasteful number, since it uses less digits than its factorization.

1553901696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348893 (or 1348878 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 45.

The square root of 1553901696 is about 39419.5598148939. The cubic root of 1553901696 is about 1158.2647698331.

The spelling of 1553901696 in words is "one billion, five hundred fifty-three million, nine hundred one thousand, six hundred ninety-six".