20374525 has 12 divisors (see below), whose sum is σ = 25742772. Its totient is φ = 15991040.

The previous prime is 20374513. The next prime is 20374537. The reversal of 20374525 is 52547302.

It is an interprime number because it is at equal distance from previous prime (20374513) and next prime (20374537).

It can be written as a sum of positive squares in 6 ways, for example, as 2490084 + 17884441 = 1578^2 + 4229^2 .

It is not a de Polignac number, because 20374525 - 2²³ = 11985917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20374493 and 20374502.

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 11 ways as a sum of consecutive naturals, for example, 6364 + ... + 9013.

It is an arithmetic number, because the mean of its divisors is an integer number (2145231).

Almost surely, 2^20374525 is an apocalyptic number.

20374525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20374525 is a deficient number, since it is larger than the sum of its proper divisors (5368247).

20374525 is a wasteful number, since it uses less digits than its factorization.

20374525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15440 (or 15435 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 20374525 is about 4513.8149053766. The cubic root of 20374525 is about 273.1256560822.

It can be divided in two parts, 20 and 374525, that added together give a triangular number (374545 = T₈₆₅).

The spelling of 20374525 in words is "twenty million, three hundred seventy-four thousand, five hundred twenty-five".