20522998 has 8 divisors (see below), whose sum is σ = 31089600. Its totient is φ = 10159800.

The previous prime is 20522987. The next prime is 20523053. The reversal of 20522998 is 89922502.

It is a happy number.

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

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, 50598 + ... + 51001.

It is an arithmetic number, because the mean of its divisors is an integer number (3886200).

Almost surely, 2^20522998 is an apocalyptic number.

20522998 is a deficient number, since it is larger than the sum of its proper divisors (10566602).

20522998 is a wasteful number, since it uses less digits than its factorization.

20522998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101702.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 20522998 is about 4530.2315614105. The cubic root of 20522998 is about 273.7874904000.

It can be divided in two parts, 2052 and 2998, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 20522998 in words is "twenty million, five hundred twenty-two thousand, nine hundred ninety-eight".