5525451440 has 40 divisors (see below), whose sum is σ = 12973888368. Its totient is φ = 2188294400.

The previous prime is 5525451413. The next prime is 5525451443. The reversal of 5525451440 is 441545255.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×5525451440² = 61061227231596147200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5525451440.

It is not an unprimeable number, because it can be changed into a prime (5525451443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333842 + ... + 350001.

Almost surely, 2^5525451440 is an apocalyptic number.

It is an amenable number.

5525451440 is an abundant number, since it is smaller than the sum of its proper divisors (7448436928).

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

5525451440 is a wasteful number, since it uses less digits than its factorization.

5525451440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683957 (or 683951 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 35.

The square root of 5525451440 is about 74333.3803886249. The cubic root of 5525451440 is about 1767.8927799545.

Adding to 5525451440 its reverse (441545255), we get a palindrome (5966996695).

The spelling of 5525451440 in words is "five billion, five hundred twenty-five million, four hundred fifty-one thousand, four hundred forty".