55252205040 has 80 divisors (see below), whose sum is σ = 171713572128. Its totient is φ = 14696782848.

The previous prime is 55252205023. The next prime is 55252205051. The reversal of 55252205040 is 4050225255.

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 (30).

It is a junction number, because it is equal to n+sod(n) for n = 55252204989 and 55252205007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194667 + ... + 385226.

Almost surely, 2^55252205040 is an apocalyptic number.

It is an amenable number.

55252205040 is an abundant number, since it is smaller than the sum of its proper divisors (116461367088).

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

55252205040 is a wasteful number, since it uses less digits than its factorization.

55252205040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580306 (or 580300 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 30.

The spelling of 55252205040 in words is "fifty-five billion, two hundred fifty-two million, two hundred five thousand, forty".