220025605 has 8 divisors (see below), whose sum is σ = 277927200. Its totient is φ = 166756176.

The previous prime is 220025599. The next prime is 220025623. The reversal of 220025605 is 506520022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220025605 - 2⁹ = 220025093 is a prime.

It is a super-2 number, since 2×220025605² = 96822533711232050, 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 7 ways as a sum of consecutive naturals, for example, 1157935 + ... + 1158124.

It is an arithmetic number, because the mean of its divisors is an integer number (34740900).

Almost surely, 2^220025605 is an apocalyptic number.

It is an amenable number.

220025605 is a deficient number, since it is larger than the sum of its proper divisors (57901595).

220025605 is a wasteful number, since it uses less digits than its factorization.

220025605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316083.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 220025605 is about 14833.2600934521. The cubic root of 220025605 is about 603.7044928529.

Adding to 220025605 its reverse (506520022), we get a palindrome (726545627).

The spelling of 220025605 in words is "two hundred twenty million, twenty-five thousand, six hundred five".