425541220 has 24 divisors (see below), whose sum is σ = 962378424. Its totient is φ = 157122816.

The previous prime is 425541211. The next prime is 425541227. The reversal of 425541220 is 22145524.

It can be written as a sum of positive squares in 4 ways, for example, as 191844 + 425349376 = 438^2 + 20624^2 .

It is not an unprimeable number, because it can be changed into a prime (425541227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 818089 + ... + 818608.

It is an arithmetic number, because the mean of its divisors is an integer number (40099101).

Almost surely, 2^425541220 is an apocalyptic number.

It is an amenable number.

425541220 is an abundant number, since it is smaller than the sum of its proper divisors (536837204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425541220 is a wasteful number, since it uses less digits than its factorization.

425541220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636719 (or 1636717 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 425541220 is about 20628.6504648268. The cubic root of 425541220 is about 752.1663115825.

Adding to 425541220 its reverse (22145524), we get a palindrome (447686744).

The spelling of 425541220 in words is "four hundred twenty-five million, five hundred forty-one thousand, two hundred twenty".