553540240 has 40 divisors (see below), whose sum is σ = 1403981568. Its totient is φ = 201287040.

The previous prime is 553540199. The next prime is 553540261. The reversal of 553540240 is 42045355.

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

It is a junction number, because it is equal to n+sod(n) for n = 553540199 and 553540208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313632 + ... + 315391.

Almost surely, 2^553540240 is an apocalyptic number.

It is an amenable number.

553540240 is an abundant number, since it is smaller than the sum of its proper divisors (850441328).

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

553540240 is a wasteful number, since it uses less digits than its factorization.

553540240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629047 (or 629041 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 553540240 is about 23527.4358993920. The cubic root of 553540240 is about 821.0754479224.

Adding to 553540240 its reverse (42045355), we get a palindrome (595585595).

The spelling of 553540240 in words is "five hundred fifty-three million, five hundred forty thousand, two hundred forty".