555022420 has 24 divisors (see below), whose sum is σ = 1166110344. Its totient is φ = 221901696.

The previous prime is 555022399. The next prime is 555022421. The reversal of 555022420 is 24220555.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 50211396 + 504811024 = 7086^2 + 22468^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555022421) 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, 45714 + ... + 56566.

It is an arithmetic number, because the mean of its divisors is an integer number (48587931).

Almost surely, 2^555022420 is an apocalyptic number.

It is an amenable number.

555022420 is an abundant number, since it is smaller than the sum of its proper divisors (611087924).

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

555022420 is a wasteful number, since it uses less digits than its factorization.

555022420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13419 (or 13417 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 555022420 is about 23558.9138119736. The cubic root of 555022420 is about 821.8076422121.

Adding to 555022420 its reverse (24220555), we get a palindrome (579242975).

The spelling of 555022420 in words is "five hundred fifty-five million, twenty-two thousand, four hundred twenty".