553220420 has 24 divisors (see below), whose sum is σ = 1199240448. Its totient is φ = 214149600.

The previous prime is 553220419. The next prime is 553220431. The reversal of 553220420 is 24022355.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445526 + ... + 446765.

It is an arithmetic number, because the mean of its divisors is an integer number (49968352).

Almost surely, 2^553220420 is an apocalyptic number.

It is an amenable number.

553220420 is an abundant number, since it is smaller than the sum of its proper divisors (646020028).

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

553220420 is a wasteful number, since it uses less digits than its factorization.

553220420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892331 (or 892329 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 553220420 is about 23520.6381716143. The cubic root of 553220420 is about 820.9172860156.

Adding to 553220420 its reverse (24022355), we get a palindrome (577242775).

It can be divided in two parts, 5532 and 20420, that added together give a palindrome (25952).

The spelling of 553220420 in words is "five hundred fifty-three million, two hundred twenty thousand, four hundred twenty".