220256425 has 24 divisors (see below), whose sum is σ = 277125120. Its totient is φ = 173644800.

The previous prime is 220256423. The next prime is 220256447. The reversal of 220256425 is 524652022.

It is not a de Polignac number, because 220256425 - 2¹ = 220256423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220256393 and 220256402.

It is not an unprimeable number, because it can be changed into a prime (220256423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 921456 + ... + 921694.

It is an arithmetic number, because the mean of its divisors is an integer number (11546880).

Almost surely, 2^220256425 is an apocalyptic number.

220256425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220256425 is a deficient number, since it is larger than the sum of its proper divisors (56868695).

220256425 is a wasteful number, since it uses less digits than its factorization.

220256425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 220256425 is about 14841.0385418272. The cubic root of 220256425 is about 603.9155264303.

The spelling of 220256425 in words is "two hundred twenty million, two hundred fifty-six thousand, four hundred twenty-five".