20925253516 has 12 divisors (see below), whose sum is σ = 36698288032. Its totient is φ = 10440028368.

The previous prime is 20925253499. The next prime is 20925253561. The reversal of 20925253516 is 61535252902.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5647515 + ... + 5651218.

Almost surely, 2^20925253516 is an apocalyptic number.

It is an amenable number.

20925253516 is a deficient number, since it is larger than the sum of its proper divisors (15773034516).

20925253516 is a wasteful number, since it uses less digits than its factorization.

20925253516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11299200 (or 11299198 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 20925253516 in words is "twenty billion, nine hundred twenty-five million, two hundred fifty-three thousand, five hundred sixteen".