20552424025 has 36 divisors (see below), whose sum is σ = 29681931708. Its totient is φ = 14075927040.

The previous prime is 20552424017. The next prime is 20552424071. The reversal of 20552424025 is 52042425502.

It can be written as a sum of positive squares in 6 ways, for example, as 2997234009 + 17555190016 = 54747^2 + 132496^2 .

It is not a de Polignac number, because 20552424025 - 2³ = 20552424017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1040037 + ... + 1059613.

It is an arithmetic number, because the mean of its divisors is an integer number (824498103).

Almost surely, 2^20552424025 is an apocalyptic number.

20552424025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20552424025 is a deficient number, since it is larger than the sum of its proper divisors (9129507683).

20552424025 is a wasteful number, since it uses less digits than its factorization.

20552424025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20458 (or 20446 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 31.

Adding to 20552424025 its reverse (52042425502), we get a palindrome (72594849527).

The spelling of 20552424025 in words is "twenty billion, five hundred fifty-two million, four hundred twenty-four thousand, twenty-five".