20550174 has 8 divisors (see below), whose sum is σ = 41100360. Its totient is φ = 6850056.

The previous prime is 20550121. The next prime is 20550199. The reversal of 20550174 is 47105502.

It is a sphenic number, since it is the product of 3 distinct primes.

20550174 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1712509 + ... + 1712520.

It is an arithmetic number, because the mean of its divisors is an integer number (5137545).

Almost surely, 2^20550174 is an apocalyptic number.

20550174 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20550174 is a wasteful number, since it uses less digits than its factorization.

20550174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425034.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 20550174 is about 4533.2299743119. The cubic root of 20550174 is about 273.9082844332.

Adding to 20550174 its reverse (47105502), we get a palindrome (67655676).

The spelling of 20550174 in words is "twenty million, five hundred fifty thousand, one hundred seventy-four".