220025 has 12 divisors (see below), whose sum is σ = 294252. Its totient is φ = 162240.

The previous prime is 220021. The next prime is 220057. The reversal of 220025 is 520022.

It can be written as a sum of positive squares in 6 ways, for example, as 64 + 219961 = 8^2 + 469^2 .

It is not a de Polignac number, because 220025 - 2² = 220021 is a prime.

It is a super-2 number, since 2×220025² = 96822001250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 219988 and 220015.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 220025.

It is not an unprimeable number, because it can be changed into a prime (220021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14 + ... + 663.

It is an arithmetic number, because the mean of its divisors is an integer number (24521).

2²²⁰⁰²⁵ is an apocalyptic number.

220025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220025 is a deficient number, since it is larger than the sum of its proper divisors (74227).

220025 is a wasteful number, since it uses less digits than its factorization.

220025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700 (or 695 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 220025 is about 469.0682253148. The cubic root of 220025 is about 60.3703939521.

Adding to 220025 its reverse (520022), we get a palindrome (740047).

The spelling of 220025 in words is "two hundred twenty thousand, twenty-five".