20532525025 has 24 divisors (see below), whose sum is σ = 25665928704. Its totient is φ = 16293916800.

The previous prime is 20532525011. The next prime is 20532525043. The reversal of 20532525025 is 52052523502.

It is not a de Polignac number, because 20532525025 - 2¹³ = 20532516833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1572072 + ... + 1585078.

It is an arithmetic number, because the mean of its divisors is an integer number (1069413696).

Almost surely, 2^20532525025 is an apocalyptic number.

20532525025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20532525025 is a deficient number, since it is larger than the sum of its proper divisors (5133403679).

20532525025 is a wasteful number, since it uses less digits than its factorization.

20532525025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13521 (or 13516 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 31.

The spelling of 20532525025 in words is "twenty billion, five hundred thirty-two million, five hundred twenty-five thousand, twenty-five".