202054417 has 4 divisors (see below), whose sum is σ = 212688880. Its totient is φ = 191419956.

The previous prime is 202054399. The next prime is 202054421. The reversal of 202054417 is 714450202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202054417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202054391 and 202054400.

It is not an unprimeable number, because it can be changed into a prime (202057417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5317203 + ... + 5317240.

It is an arithmetic number, because the mean of its divisors is an integer number (53172220).

Almost surely, 2^202054417 is an apocalyptic number.

It is an amenable number.

202054417 is a deficient number, since it is larger than the sum of its proper divisors (10634463).

202054417 is a wasteful number, since it uses less digits than its factorization.

202054417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10634462.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 202054417 is about 14214.5846580194. The cubic root of 202054417 is about 586.7991142004.

The spelling of 202054417 in words is "two hundred two million, fifty-four thousand, four hundred seventeen".