20517048 has 48 divisors (see below), whose sum is σ = 55851120. Its totient is φ = 6804096.

The previous prime is 20517047. The next prime is 20517059. The reversal of 20517048 is 84071502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20517041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16165 + ... + 17387.

It is an arithmetic number, because the mean of its divisors is an integer number (1163565).

Almost surely, 2^20517048 is an apocalyptic number.

It is an amenable number.

20517048 is an abundant number, since it is smaller than the sum of its proper divisors (35334072).

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

20517048 is a wasteful number, since it uses less digits than its factorization.

20517048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468 (or 1461 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 20517048 is about 4529.5748144831. The cubic root of 20517048 is about 273.7610291422.

The spelling of 20517048 in words is "twenty million, five hundred seventeen thousand, forty-eight".