621325452 has 48 divisors (see below), whose sum is σ = 1674594432. Its totient is φ = 177204480.

The previous prime is 621325451. The next prime is 621325457. The reversal of 621325452 is 254523126.

It is not an unprimeable number, because it can be changed into a prime (621325451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136198 + ... + 140685.

It is an arithmetic number, because the mean of its divisors is an integer number (34887384).

Almost surely, 2^621325452 is an apocalyptic number.

It is an amenable number.

621325452 is an abundant number, since it is smaller than the sum of its proper divisors (1053268980).

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

621325452 is a wasteful number, since it uses less digits than its factorization.

621325452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276918 (or 276916 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 621325452 is about 24926.4007028692. The cubic root of 621325452 is about 853.3091085381.

Adding to 621325452 its reverse (254523126), we get a palindrome (875848578).

The spelling of 621325452 in words is "six hundred twenty-one million, three hundred twenty-five thousand, four hundred fifty-two".