451125250 has 16 divisors (see below), whose sum is σ = 844506936. Its totient is φ = 180450000.

The previous prime is 451125221. The next prime is 451125253. The reversal of 451125250 is 52521154.

It can be written as a sum of positive squares in 4 ways, for example, as 234181809 + 216943441 = 15303^2 + 14729^2 .

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

It is not an unprimeable number, because it can be changed into a prime (451125253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 902001 + ... + 902500.

Almost surely, 2^451125250 is an apocalyptic number.

451125250 is a deficient number, since it is larger than the sum of its proper divisors (393381686).

451125250 is a wasteful number, since it uses less digits than its factorization.

451125250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804518 (or 1804508 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 451125250 is about 21239.7092729632. The cubic root of 451125250 is about 766.9476338389.

The spelling of 451125250 in words is "four hundred fifty-one million, one hundred twenty-five thousand, two hundred fifty".