553611972 has 48 divisors (see below), whose sum is σ = 1343462400. Its totient is φ = 177219840.

The previous prime is 553611959. The next prime is 553611997. The reversal of 553611972 is 279116355.

It is a self number, because there is not a number n which added to its sum of digits gives 553611972.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62304 + ... + 70632.

It is an arithmetic number, because the mean of its divisors is an integer number (27988800).

Almost surely, 2^553611972 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 553611972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (671731200).

553611972 is an abundant number, since it is smaller than the sum of its proper divisors (789850428).

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

553611972 is a wasteful number, since it uses less digits than its factorization.

553611972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8556 (or 8554 counting only the distinct ones).

The product of its digits is 56700, while the sum is 39.

The square root of 553611972 is about 23528.9602830214. The cubic root of 553611972 is about 821.1109134802.

The spelling of 553611972 in words is "five hundred fifty-three million, six hundred eleven thousand, nine hundred seventy-two".