5525920440 has 160 divisors (see below), whose sum is σ = 18809208000. Its totient is φ = 1454858496.

The previous prime is 5525920409. The next prime is 5525920447. The reversal of 5525920440 is 440295255.

5525920440 is a `hidden beast` number, since 5 + 525 + 92 + 0 + 4 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5525920395 and 5525920404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5525920447) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 245166 + ... + 266754.

It is an arithmetic number, because the mean of its divisors is an integer number (117557550).

Almost surely, 2^5525920440 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 5525920440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9404604000).

5525920440 is an abundant number, since it is smaller than the sum of its proper divisors (13283287560).

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

5525920440 is a wasteful number, since it uses less digits than its factorization.

5525920440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21691 (or 21678 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 5525920440 is about 74336.5350282080. The cubic root of 5525920440 is about 1767.9427980852.

The spelling of 5525920440 in words is "five billion, five hundred twenty-five million, nine hundred twenty thousand, four hundred forty".