54955995550 has 48 divisors (see below), whose sum is σ = 105555636864. Its totient is φ = 21265200000.

The previous prime is 54955995529. The next prime is 54955995559. The reversal of 54955995550 is 5559955945.

It is a happy number.

It is a super-2 number, since 2×54955995550² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54955995559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5545600 + ... + 5555500.

It is an arithmetic number, because the mean of its divisors is an integer number (2199075768).

Almost surely, 2^54955995550 is an apocalyptic number.

54955995550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

54955995550 is a deficient number, since it is larger than the sum of its proper divisors (50599641314).

54955995550 is a wasteful number, since it uses less digits than its factorization.

54955995550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13525 (or 13520 counting only the distinct ones).

The product of its (nonzero) digits is 45562500, while the sum is 61.

The spelling of 54955995550 in words is "fifty-four billion, nine hundred fifty-five million, nine hundred ninety-five thousand, five hundred fifty".