260221552 has 20 divisors (see below), whose sum is σ = 515905720. Its totient is φ = 127084608.

The previous prime is 260221537. The next prime is 260221589. The reversal of 260221552 is 255122062.

It is a happy number.

It is a super-2 number, since 2×260221552² = 135430512250577408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 188427 + ... + 189802.

It is an arithmetic number, because the mean of its divisors is an integer number (25795286).

Almost surely, 2^260221552 is an apocalyptic number.

It is an amenable number.

260221552 is a deficient number, since it is larger than the sum of its proper divisors (255684168).

260221552 is a wasteful number, since it uses less digits than its factorization.

260221552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378280 (or 378274 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 260221552 is about 16131.3840695707. The cubic root of 260221552 is about 638.4316677235.

The spelling of 260221552 in words is "two hundred sixty million, two hundred twenty-one thousand, five hundred fifty-two".