555126420 has 96 divisors (see below), whose sum is σ = 1645056000. Its totient is φ = 139480704.

The previous prime is 555126419. The next prime is 555126421. The reversal of 555126420 is 24621555.

It is an interprime number because it is at equal distance from previous prime (555126419) and next prime (555126421).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555126421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 225637 + ... + 228083.

It is an arithmetic number, because the mean of its divisors is an integer number (17136000).

Almost surely, 2^555126420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555126420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (822528000).

555126420 is an abundant number, since it is smaller than the sum of its proper divisors (1089929580).

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

555126420 is a wasteful number, since it uses less digits than its factorization.

555126420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2677 (or 2675 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 555126420 is about 23561.1209410758. The cubic root of 555126420 is about 821.8589690618.

Adding to 555126420 its reverse (24621555), we get a palindrome (579747975).

The spelling of 555126420 in words is "five hundred fifty-five million, one hundred twenty-six thousand, four hundred twenty".