1971096552 has 64 divisors (see below), whose sum is σ = 5797353600. Its totient is φ = 618382080.

The previous prime is 1971096503. The next prime is 1971096557. The reversal of 1971096552 is 2556901791.

1971096552 is a `hidden beast` number, since 1 + 9 + 7 + 1 + 0 + 96 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1971096498 and 1971096507.

It is not an unprimeable number, because it can be changed into a prime (1971096557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264724 + ... + 272067.

It is an arithmetic number, because the mean of its divisors is an integer number (90583650).

Almost surely, 2^1971096552 is an apocalyptic number.

1971096552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1971096552 is an abundant number, since it is smaller than the sum of its proper divisors (3826257048).

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

1971096552 is a wasteful number, since it uses less digits than its factorization.

1971096552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536823 (or 536813 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 45.

The square root of 1971096552 is about 44397.0331441190. The cubic root of 1971096552 is about 1253.8222316170.

The spelling of 1971096552 in words is "one billion, nine hundred seventy-one million, ninety-six thousand, five hundred fifty-two".