55055000000550 has 96 divisors (see below), whose sum is σ = 149604963133824. Its totient is φ = 13287870688000.

The previous prime is 55055000000537. The next prime is 55055000000557. The reversal of 55055000000550 is 5500000055055.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55055000000557) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73120311 + ... + 73869410.

It is an arithmetic number, because the mean of its divisors is an integer number (1558385032644).

Almost surely, 2^{55055000000550} is an apocalyptic number.

55055000000550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55055000000550 is an abundant number, since it is smaller than the sum of its proper divisors (94549963133274).

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

55055000000550 is a wasteful number, since it uses less digits than its factorization.

55055000000550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146989974 (or 146989969 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 30.

The spelling of 55055000000550 in words is "fifty-five trillion, fifty-five billion, five hundred fifty", and thus it is an aban number.