1020500648 has 16 divisors (see below), whose sum is σ = 1913820480. Its totient is φ = 510148528.

The previous prime is 1020500647. The next prime is 1020500669. The reversal of 1020500648 is 8460050201.

It is not an unprimeable number, because it can be changed into a prime (1020500641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45611 + ... + 64197.

It is an arithmetic number, because the mean of its divisors is an integer number (119613780).

Almost surely, 2^1020500648 is an apocalyptic number.

It is an amenable number.

1020500648 is a deficient number, since it is larger than the sum of its proper divisors (893319832).

1020500648 is a wasteful number, since it uses less digits than its factorization.

1020500648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25456 (or 25452 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1020500648 is about 31945.2758322729. The cubic root of 1020500648 is about 1006.7873766239.

Adding to 1020500648 its reverse (8460050201), we get a palindrome (9480550849).

The spelling of 1020500648 in words is "one billion, twenty million, five hundred thousand, six hundred forty-eight".