451405253 has 6 divisors (see below), whose sum is σ = 488799954. Its totient is φ = 416681616.

The previous prime is 451405247. The next prime is 451405261. The reversal of 451405253 is 352504154.

It can be written as a sum of positive squares in 3 ways, for example, as 12837889 + 438567364 = 3583^2 + 20942^2 .

It is not a de Polignac number, because 451405253 - 2⁶ = 451405189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451405223) 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, 1335350 + ... + 1335687.

It is an arithmetic number, because the mean of its divisors is an integer number (81466659).

Almost surely, 2^451405253 is an apocalyptic number.

It is an amenable number.

451405253 is a deficient number, since it is larger than the sum of its proper divisors (37394701).

451405253 is a wasteful number, since it uses less digits than its factorization.

451405253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2671063 (or 2671050 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 451405253 is about 21246.2997484268. The cubic root of 451405253 is about 767.1062765691.

The spelling of 451405253 in words is "four hundred fifty-one million, four hundred five thousand, two hundred fifty-three".