20264425 has 12 divisors (see below), whose sum is σ = 26606556. Its totient is φ = 15257600.

The previous prime is 20264401. The next prime is 20264437. The reversal of 20264425 is 52446202.

It can be written as a sum of positive squares in 6 ways, for example, as 524176 + 19740249 = 724^2 + 4443^2 .

It is not a de Polignac number, because 20264425 - 2⁹ = 20263913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20264425.

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, 23416 + ... + 24265.

It is an arithmetic number, because the mean of its divisors is an integer number (2217213).

Almost surely, 2^20264425 is an apocalyptic number.

20264425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20264425 is a deficient number, since it is larger than the sum of its proper divisors (6342131).

20264425 is a wasteful number, since it uses less digits than its factorization.

20264425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47708 (or 47703 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 20264425 is about 4501.6024924464. The cubic root of 20264425 is about 272.6327944631.

The spelling of 20264425 in words is "twenty million, two hundred sixty-four thousand, four hundred twenty-five".