20507048 has 8 divisors (see below), whose sum is σ = 38450730. Its totient is φ = 10253520.

The previous prime is 20507033. The next prime is 20507051. The reversal of 20507048 is 84070502.

It can be written as a sum of positive squares in only one way, i.e., 20448484 + 58564 = 4522^2 + 242^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1281683 + ... + 1281698.

Almost surely, 2^20507048 is an apocalyptic number.

It is an amenable number.

20507048 is a deficient number, since it is larger than the sum of its proper divisors (17943682).

20507048 is a wasteful number, since it uses less digits than its factorization.

20507048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2563387 (or 2563383 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 20507048 is about 4528.4708235783. The cubic root of 20507048 is about 273.7165449132.

The spelling of 20507048 in words is "twenty million, five hundred seven thousand, forty-eight".