1651556452 has 24 divisors (see below), whose sum is σ = 3557199296. Its totient is φ = 653362848.

The previous prime is 1651556429. The next prime is 1651556503. The reversal of 1651556452 is 2546551561.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2268258 + ... + 2268985.

Almost surely, 2^1651556452 is an apocalyptic number.

It is an amenable number.

1651556452 is an abundant number, since it is smaller than the sum of its proper divisors (1905642844).

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

1651556452 is a wasteful number, since it uses less digits than its factorization.

1651556452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4537267 (or 4537265 counting only the distinct ones).

The product of its digits is 180000, while the sum is 40.

The square root of 1651556452 is about 40639.3461069442. The cubic root of 1651556452 is about 1182.0371904702.

The spelling of 1651556452 in words is "one billion, six hundred fifty-one million, five hundred fifty-six thousand, four hundred fifty-two".