452526021 has 56 divisors (see below), whose sum is σ = 734321120. Its totient is φ = 277766496.

The previous prime is 452526017. The next prime is 452526083. The reversal of 452526021 is 120625254.

452526021 is a `hidden beast` number, since 4 + 5 + 2 + 52 + 602 + 1 = 666.

It is not a de Polignac number, because 452526021 - 2² = 452526017 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452526001) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 512046 + ... + 512928.

Almost surely, 2^452526021 is an apocalyptic number.

It is an amenable number.

452526021 is a deficient number, since it is larger than the sum of its proper divisors (281795099).

452526021 is an equidigital number, since it uses as much as digits as its factorization.

452526021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957 (or 942 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 452526021 is about 21272.6590016387. The cubic root of 452526021 is about 767.7406198056.

The spelling of 452526021 in words is "four hundred fifty-two million, five hundred twenty-six thousand, twenty-one".