20522498 has 4 divisors (see below), whose sum is σ = 30783750. Its totient is φ = 10261248.

The previous prime is 20522477. The next prime is 20522507. The reversal of 20522498 is 89422502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15264649 + 5257849 = 3907^2 + 2293^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5130623 + ... + 5130626.

Almost surely, 2^20522498 is an apocalyptic number.

20522498 is a deficient number, since it is larger than the sum of its proper divisors (10261252).

20522498 is a wasteful number, since it uses less digits than its factorization.

20522498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10261251.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 20522498 is about 4530.1763762573. The cubic root of 20522498 is about 273.7852669617.

The spelling of 20522498 in words is "twenty million, five hundred twenty-two thousand, four hundred ninety-eight".