249425 has 12 divisors (see below), whose sum is σ = 337776. Its totient is φ = 181200.

The previous prime is 249421. The next prime is 249427. The reversal of 249425 is 524942.

It is not a de Polignac number, because 249425 - 2² = 249421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 249394 and 249403.

It is not an unprimeable number, because it can be changed into a prime (249421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 179 + ... + 728.

It is an arithmetic number, because the mean of its divisors is an integer number (28148).

2²⁴⁹⁴²⁵ is an apocalyptic number.

249425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

249425 is a deficient number, since it is larger than the sum of its proper divisors (88351).

249425 is a wasteful number, since it uses less digits than its factorization.

249425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928 (or 923 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 249425 is about 499.4246689942. The cubic root of 249425 is about 62.9477184461.

It can be divided in two parts, 24 and 9425, that added together give a palindrome (9449).

The spelling of 249425 in words is "two hundred forty-nine thousand, four hundred twenty-five".