452121320500 has 24 divisors (see below), whose sum is σ = 987432965064. Its totient is φ = 180848528000.

The previous prime is 452121320479. The next prime is 452121320503. The reversal of 452121320500 is 5023121254.

It can be written as a sum of positive squares in 4 ways, for example, as 43552350864 + 408568969636 = 208692^2 + 639194^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452121320503) 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, 452120821 + ... + 452121820.

It is an arithmetic number, because the mean of its divisors is an integer number (41143040211).

Almost surely, 2^452121320500 is an apocalyptic number.

It is an amenable number.

452121320500 is an abundant number, since it is smaller than the sum of its proper divisors (535311644564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

452121320500 is a wasteful number, since it uses less digits than its factorization.

452121320500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904242660 (or 904242648 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 452121320500 its reverse (5023121254), we get a palindrome (457144441754).

The spelling of 452121320500 in words is "four hundred fifty-two billion, one hundred twenty-one million, three hundred twenty thousand, five hundred".