20331237025 has 24 divisors (see below), whose sum is σ = 27677853504. Its totient is φ = 14692142400.

The previous prime is 20331237007. The next prime is 20331237037. The reversal of 20331237025 is 52073213302.

It is not a de Polignac number, because 20331237025 - 2⁷ = 20331236897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20331236984 and 20331237002.

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, 192277 + ... + 278626.

It is an arithmetic number, because the mean of its divisors is an integer number (1153243896).

Almost surely, 2^20331237025 is an apocalyptic number.

20331237025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20331237025 is a deficient number, since it is larger than the sum of its proper divisors (7346616479).

20331237025 is a wasteful number, since it uses less digits than its factorization.

20331237025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471081 (or 471076 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 28.

The spelling of 20331237025 in words is "twenty billion, three hundred thirty-one million, two hundred thirty-seven thousand, twenty-five".