552521435440 has 80 divisors (see below), whose sum is σ = 1389470443200. Its totient is φ = 203116962816.

The previous prime is 552521435429. The next prime is 552521435449. The reversal of 552521435440 is 44534125255.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 552521435393 and 552521435402.

It is not an unprimeable number, because it can be changed into a prime (552521435449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 921820 + ... + 1398139.

It is an arithmetic number, because the mean of its divisors is an integer number (17368380540).

Almost surely, 2^552521435440 is an apocalyptic number.

It is an amenable number.

552521435440 is an abundant number, since it is smaller than the sum of its proper divisors (836949007760).

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

552521435440 is a wasteful number, since it uses less digits than its factorization.

552521435440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2320214 (or 2320208 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 40.

The spelling of 552521435440 in words is "five hundred fifty-two billion, five hundred twenty-one million, four hundred thirty-five thousand, four hundred forty".