451251725 has 6 divisors (see below), whose sum is σ = 559552170. Its totient is φ = 361001360.

The previous prime is 451251683. The next prime is 451251727. The reversal of 451251725 is 527152154.

It can be written as a sum of positive squares in 3 ways, for example, as 34316164 + 416935561 = 5858^2 + 20419^2 .

It is not a de Polignac number, because 451251725 - 2¹⁴ = 451235341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 451251691 and 451251700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451251727) 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, 9025010 + ... + 9025059.

It is an arithmetic number, because the mean of its divisors is an integer number (93258695).

Almost surely, 2^451251725 is an apocalyptic number.

It is an amenable number.

451251725 is a deficient number, since it is larger than the sum of its proper divisors (108300445).

451251725 is a wasteful number, since it uses less digits than its factorization.

451251725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18050079 (or 18050074 counting only the distinct ones).

The product of its digits is 14000, while the sum is 32.

The square root of 451251725 is about 21242.6863884962. The cubic root of 451251725 is about 767.0192995523.

The spelling of 451251725 in words is "four hundred fifty-one million, two hundred fifty-one thousand, seven hundred twenty-five".