1421563552 has 24 divisors (see below), whose sum is σ = 2806744500. Its totient is φ = 708739584.

The previous prime is 1421563547. The next prime is 1421563571. The reversal of 1421563552 is 2553651241.

It can be written as a sum of positive squares in 2 ways, for example, as 1408050576 + 13512976 = 37524^2 + 3676^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52477 + ... + 74812.

Almost surely, 2^1421563552 is an apocalyptic number.

It is an amenable number.

1421563552 is a deficient number, since it is larger than the sum of its proper divisors (1385180948).

1421563552 is a wasteful number, since it uses less digits than its factorization.

1421563552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127648 (or 127640 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 1421563552 is about 37703.6278360584. The cubic root of 1421563552 is about 1124.4032527672.

The spelling of 1421563552 in words is "one billion, four hundred twenty-one million, five hundred sixty-three thousand, five hundred fifty-two".