20152500425 has 12 divisors (see below), whose sum is σ = 25218361740. Its totient is φ = 15974089920.

The previous prime is 20152500419. The next prime is 20152500437. The reversal of 20152500425 is 52400525102.

It can be written as a sum of positive squares in 6 ways, for example, as 626350729 + 19526149696 = 25027^2 + 139736^2 .

It is not a de Polignac number, because 20152500425 - 2⁴ = 20152500409 is a prime.

It is a super-2 number, since 2×20152500425² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20152500394 and 20152500403.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3694982 + ... + 3700431.

It is an arithmetic number, because the mean of its divisors is an integer number (2101530145).

Almost surely, 2^20152500425 is an apocalyptic number.

20152500425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20152500425 is a deficient number, since it is larger than the sum of its proper divisors (5065861315).

20152500425 is a wasteful number, since it uses less digits than its factorization.

20152500425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7395532 (or 7395527 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The spelling of 20152500425 in words is "twenty billion, one hundred fifty-two million, five hundred thousand, four hundred twenty-five".