55166450 has 24 divisors (see below), whose sum is σ = 102874368. Its totient is φ = 22009680.

The previous prime is 55166429. The next prime is 55166467. The reversal of 55166450 is 5466155.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21959 + ... + 24341.

It is an arithmetic number, because the mean of its divisors is an integer number (4286432).

Almost surely, 2^55166450 is an apocalyptic number.

55166450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55166450 is a deficient number, since it is larger than the sum of its proper divisors (47707918).

55166450 is a wasteful number, since it uses less digits than its factorization.

55166450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858 (or 2853 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 55166450 is about 7427.4120661237. The cubic root of 55166450 is about 380.6784969515.

The spelling of 55166450 in words is "fifty-five million, one hundred sixty-six thousand, four hundred fifty".