25003381 has 6 divisors (see below), whose sum is σ = 27074850. Its totient is φ = 23079888.

The previous prime is 25003361. The next prime is 25003417. The reversal of 25003381 is 18330052.

It can be written as a sum of positive squares in 3 ways, for example, as 1876900 + 23126481 = 1370^2 + 4809^2 .

It is not a de Polignac number, because 25003381 - 2¹³ = 24995189 is a prime.

It is a super-2 number, since 2×25003381² = 1250338122862322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25003301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73806 + ... + 74143.

It is an arithmetic number, because the mean of its divisors is an integer number (4512475).

Almost surely, 2^25003381 is an apocalyptic number.

It is an amenable number.

25003381 is a deficient number, since it is larger than the sum of its proper divisors (2071469).

25003381 is a wasteful number, since it uses less digits than its factorization.

25003381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147975 (or 147962 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 25003381 is about 5000.3380885696. The cubic root of 25003381 is about 292.4149546991.

The spelling of 25003381 in words is "twenty-five million, three thousand, three hundred eighty-one".