249425045 has 16 divisors (see below), whose sum is σ = 302253312. Its totient is φ = 197588160.

The previous prime is 249425023. The next prime is 249425047. The reversal of 249425045 is 540524942.

It is not a de Polignac number, because 249425045 - 2⁸ = 249424789 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 249424996 and 249425014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249425047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377015 + ... + 377675.

It is an arithmetic number, because the mean of its divisors is an integer number (18890832).

Almost surely, 2^249425045 is an apocalyptic number.

It is an amenable number.

249425045 is a deficient number, since it is larger than the sum of its proper divisors (52828267).

249425045 is a wasteful number, since it uses less digits than its factorization.

249425045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 249425045 is about 15793.1961616387. The cubic root of 249425045 is about 629.4772223167.

Adding to 249425045 its reverse (540524942), we get a palindrome (789949987).

The spelling of 249425045 in words is "two hundred forty-nine million, four hundred twenty-five thousand, forty-five".