55434550 has 12 divisors (see below), whose sum is σ = 103108356. Its totient is φ = 22173800.

The previous prime is 55434529. The next prime is 55434551. The reversal of 55434550 is 5543455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55434551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 554296 + ... + 554395.

It is an arithmetic number, because the mean of its divisors is an integer number (8592363).

Almost surely, 2^55434550 is an apocalyptic number.

55434550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55434550 is a deficient number, since it is larger than the sum of its proper divisors (47673806).

55434550 is a wasteful number, since it uses less digits than its factorization.

55434550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108703 (or 1108698 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 55434550 is about 7445.4382006703. The cubic root of 55434550 is about 381.2941792394.

The spelling of 55434550 in words is "fifty-five million, four hundred thirty-four thousand, five hundred fifty".