20310214625 has 16 divisors (see below), whose sum is σ = 25384915920. Its totient is φ = 16223961600.

The previous prime is 20310214621. The next prime is 20310214633. The reversal of 20310214625 is 52641201302.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 11157274384 + 9152940241 = 105628^2 + 95671^2 .

It is not a de Polignac number, because 20310214625 - 2² = 20310214621 is a prime.

It is a super-2 number, since 2×20310214625² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20310214594 and 20310214603.

It is not an unprimeable number, because it can be changed into a prime (20310214621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36590 + ... + 204839.

It is an arithmetic number, because the mean of its divisors is an integer number (1586557245).

Almost surely, 2^20310214625 is an apocalyptic number.

20310214625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20310214625 is a deficient number, since it is larger than the sum of its proper divisors (5074701295).

20310214625 is an equidigital number, since it uses as much as digits as its factorization.

20310214625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242117 (or 242107 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 20310214625 its reverse (52641201302), we get a palindrome (72951415927).

The spelling of 20310214625 in words is "twenty billion, three hundred ten million, two hundred fourteen thousand, six hundred twenty-five".