452155521 has 8 divisors (see below), whose sum is σ = 634604320. Its totient is φ = 285571872.

The previous prime is 452155507. The next prime is 452155523. The reversal of 452155521 is 125551254.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 452155521 - 2⁷ = 452155393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (452155523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3966220 + ... + 3966333.

It is an arithmetic number, because the mean of its divisors is an integer number (79325540).

Almost surely, 2^452155521 is an apocalyptic number.

It is an amenable number.

452155521 is a deficient number, since it is larger than the sum of its proper divisors (182448799).

452155521 is a wasteful number, since it uses less digits than its factorization.

452155521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7932575.

The product of its digits is 10000, while the sum is 30.

The square root of 452155521 is about 21263.9488571620. The cubic root of 452155521 is about 767.5310365985.

It can be divided in two parts, 452155 and 521, that added together give a triangular number (452676 = T₉₅₁).

The spelling of 452155521 in words is "four hundred fifty-two million, one hundred fifty-five thousand, five hundred twenty-one".