251045325 has 30 divisors (see below), whose sum is σ = 465026474. Its totient is φ = 133889760.

The previous prime is 251045323. The next prime is 251045339. The reversal of 251045325 is 523540152.

It is a happy number.

251045325 is a `hidden beast` number, since 25 + 104 + 532 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 29452329 + 221592996 = 5427^2 + 14886^2 .

It is not a de Polignac number, because 251045325 - 2¹ = 251045323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251045323) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 59962 + ... + 64011.

Almost surely, 2^251045325 is an apocalyptic number.

251045325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

251045325 is a deficient number, since it is larger than the sum of its proper divisors (213981149).

251045325 is a wasteful number, since it uses less digits than its factorization.

251045325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123995 (or 123981 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 251045325 is about 15844.4098975001. The cubic root of 251045325 is about 630.8373220110.

Adding to 251045325 its reverse (523540152), we get a palindrome (774585477).

The spelling of 251045325 in words is "two hundred fifty-one million, forty-five thousand, three hundred twenty-five".