20151325 has 12 divisors (see below), whose sum is σ = 25066228. Its totient is φ = 16070400.

The previous prime is 20151319. The next prime is 20151349. The reversal of 20151325 is 52315102.

It can be written as a sum of positive squares in 6 ways, for example, as 63001 + 20088324 = 251^2 + 4482^2 .

It is not a de Polignac number, because 20151325 - 2⁵ = 20151293 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 8245 + ... + 10405.

Almost surely, 2^20151325 is an apocalyptic number.

20151325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20151325 is a deficient number, since it is larger than the sum of its proper divisors (4914903).

20151325 is a wasteful number, since it uses less digits than its factorization.

20151325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544 (or 2539 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 20151325 is about 4489.0227221523. The cubic root of 20151325 is about 272.1246410088.

Adding to 20151325 its reverse (52315102), we get a palindrome (72466427).

The spelling of 20151325 in words is "twenty million, one hundred fifty-one thousand, three hundred twenty-five".