20048558 has 4 divisors (see below), whose sum is σ = 30072840. Its totient is φ = 10024278.

The previous prime is 20048551. The next prime is 20048579. The reversal of 20048558 is 85584002.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20048551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5012138 + ... + 5012141.

It is an arithmetic number, because the mean of its divisors is an integer number (7518210).

Almost surely, 2^20048558 is an apocalyptic number.

20048558 is a deficient number, since it is larger than the sum of its proper divisors (10024282).

20048558 is a wasteful number, since it uses less digits than its factorization.

20048558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10024281.

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 20048558 is about 4477.5616131998. The cubic root of 20048558 is about 271.6612619314.

The spelling of 20048558 in words is "twenty million, forty-eight thousand, five hundred fifty-eight".