55413040 has 20 divisors (see below), whose sum is σ = 128835504. Its totient is φ = 22165184.

The previous prime is 55413023. The next prime is 55413067. The reversal of 55413040 is 4031455.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346252 + ... + 346411.

Almost surely, 2^55413040 is an apocalyptic number.

It is an amenable number.

55413040 is an abundant number, since it is smaller than the sum of its proper divisors (73422464).

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

55413040 is a wasteful number, since it uses less digits than its factorization.

55413040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692676 (or 692670 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 55413040 is about 7443.9935518510. The cubic root of 55413040 is about 381.2448556145.

Adding to 55413040 its reverse (4031455), we get a palindrome (59444495).

The spelling of 55413040 in words is "fifty-five million, four hundred thirteen thousand, forty".