20293725 has 12 divisors (see below), whose sum is σ = 33552416. Its totient is φ = 10823280.

The previous prime is 20293709. The next prime is 20293739. The reversal of 20293725 is 52739202.

It is a happy number.

It is not a de Polignac number, because 20293725 - 2⁴ = 20293709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20293692 and 20293701.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135217 + ... + 135366.

Almost surely, 2^20293725 is an apocalyptic number.

20293725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20293725 is a deficient number, since it is larger than the sum of its proper divisors (13258691).

20293725 is a wasteful number, since it uses less digits than its factorization.

20293725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270596 (or 270591 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 20293725 is about 4504.8557135606. The cubic root of 20293725 is about 272.7641296148.

The spelling of 20293725 in words is "twenty million, two hundred ninety-three thousand, seven hundred twenty-five".