20022232525 has 24 divisors (see below), whose sum is σ = 25233367104. Its totient is φ = 15756988800.

The previous prime is 20022232493. The next prime is 20022232537. The reversal of 20022232525 is 52523222002.

It is not a de Polignac number, because 20022232525 - 2⁵ = 20022232493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20022232525.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 798834 + ... + 823516.

It is an arithmetic number, because the mean of its divisors is an integer number (1051390296).

Almost surely, 2^20022232525 is an apocalyptic number.

20022232525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20022232525 is a deficient number, since it is larger than the sum of its proper divisors (5211134579).

20022232525 is a wasteful number, since it uses less digits than its factorization.

20022232525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25221 (or 25216 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 20022232525 its reverse (52523222002), we get a palindrome (72545454527).

The spelling of 20022232525 in words is "twenty billion, twenty-two million, two hundred thirty-two thousand, five hundred twenty-five".