20252520505 has 48 divisors (see below), whose sum is σ = 28613949840. Its totient is φ = 13719552000.

The previous prime is 20252520499. The next prime is 20252520511. The reversal of 20252520505 is 50502525202.

It is an interprime number because it is at equal distance from previous prime (20252520499) and next prime (20252520511).

It can be written as a sum of positive squares in 8 ways, for example, as 1520766009 + 18731754496 = 38997^2 + 136864^2 .

It is not a de Polignac number, because 20252520505 - 2⁵ = 20252520473 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21799881 + ... + 21800809.

It is an arithmetic number, because the mean of its divisors is an integer number (596123955).

Almost surely, 2^20252520505 is an apocalyptic number.

It is an amenable number.

20252520505 is a deficient number, since it is larger than the sum of its proper divisors (8361429335).

20252520505 is a wasteful number, since it uses less digits than its factorization.

20252520505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930 (or 1923 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

The spelling of 20252520505 in words is "twenty billion, two hundred fifty-two million, five hundred twenty thousand, five hundred five".