553421700 has 144 divisors (see below), whose sum is σ = 1916127360. Its totient is φ = 136218240.

The previous prime is 553421651. The next prime is 553421717. The reversal of 553421700 is 7124355.

It is a happy number.

553421700 is a `hidden beast` number, since 553 + 42 + 1 + 70 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27217 + ... + 42983.

It is an arithmetic number, because the mean of its divisors is an integer number (13306440).

Almost surely, 2^553421700 is an apocalyptic number.

553421700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 553421700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (958063680).

553421700 is an abundant number, since it is smaller than the sum of its proper divisors (1362705660).

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

553421700 is a wasteful number, since it uses less digits than its factorization.

553421700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15803 (or 15790 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 553421700 is about 23524.9165779605. The cubic root of 553421700 is about 821.0168329533.

The spelling of 553421700 in words is "five hundred fifty-three million, four hundred twenty-one thousand, seven hundred".