450521155 has 16 divisors (see below), whose sum is σ = 620331264. Its totient is φ = 307692000.

The previous prime is 450521153. The next prime is 450521167. The reversal of 450521155 is 551125054.

It is not a de Polignac number, because 450521155 - 2¹ = 450521153 is a prime.

It is a super-2 number, since 2×450521155² = 405938622205068050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (450521153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16857 + ... + 34426.

It is an arithmetic number, because the mean of its divisors is an integer number (38770704).

Almost surely, 2^450521155 is an apocalyptic number.

450521155 is a deficient number, since it is larger than the sum of its proper divisors (169810109).

450521155 is a wasteful number, since it uses less digits than its factorization.

450521155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51546.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 450521155 is about 21225.4836222876. The cubic root of 450521155 is about 766.6051449267.

The spelling of 450521155 in words is "four hundred fifty million, five hundred twenty-one thousand, one hundred fifty-five".