55417457500 has 30 divisors (see below), whose sum is σ = 121186901528. Its totient is φ = 22166982000.

The previous prime is 55417457419. The next prime is 55417457503. The reversal of 55417457500 is 575471455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55417457503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 11080992 + ... + 11085991.

Almost surely, 2^55417457500 is an apocalyptic number.

55417457500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55417457500 is an abundant number, since it is smaller than the sum of its proper divisors (65769444028).

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

55417457500 is a wasteful number, since it uses less digits than its factorization.

55417457500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22167007 (or 22166990 counting only the distinct ones).

The product of its (nonzero) digits is 490000, while the sum is 43.

The spelling of 55417457500 in words is "fifty-five billion, four hundred seventeen million, four hundred fifty-seven thousand, five hundred".