536451021 has 12 divisors (see below), whose sum is σ = 781984060. Its totient is φ = 354352320.

The previous prime is 536450989. The next prime is 536451023. The reversal of 536451021 is 120154635.

536451021 is a `hidden beast` number, since 5 + 3 + 645 + 10 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 175032900 + 361418121 = 13230^2 + 19011^2 .

It is not a de Polignac number, because 536451021 - 2⁵ = 536450989 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 (536451023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 272440 + ... + 274401.

Almost surely, 2^536451021 is an apocalyptic number.

It is an amenable number.

536451021 is a deficient number, since it is larger than the sum of its proper divisors (245533039).

536451021 is a wasteful number, since it uses less digits than its factorization.

536451021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546956 (or 546953 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 536451021 is about 23161.4123274035. The cubic root of 536451021 is about 812.5373974424.

The spelling of 536451021 in words is "five hundred thirty-six million, four hundred fifty-one thousand, twenty-one".