1721120552 has 16 divisors (see below), whose sum is σ = 3227545440. Its totient is φ = 860441776.

The previous prime is 1721120543. The next prime is 1721120587. The reversal of 1721120552 is 2550211271.

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, 93503 + ... + 110385.

It is an arithmetic number, because the mean of its divisors is an integer number (201721590).

Almost surely, 2^1721120552 is an apocalyptic number.

It is an amenable number.

1721120552 is a deficient number, since it is larger than the sum of its proper divisors (1506424888).

1721120552 is a wasteful number, since it uses less digits than its factorization.

1721120552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29632 (or 29628 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 1721120552 is about 41486.3899610463. The cubic root of 1721120552 is about 1198.4054172118.

The spelling of 1721120552 in words is "one billion, seven hundred twenty-one million, one hundred twenty thousand, five hundred fifty-two".