621752325 has 48 divisors (see below), whose sum is σ = 1060646400. Its totient is φ = 321227200.

The previous prime is 621752323. The next prime is 621752387. The reversal of 621752325 is 523257126.

It is not a de Polignac number, because 621752325 - 2¹ = 621752323 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621752323) 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 47 ways as a sum of consecutive naturals, for example, 313186 + ... + 315164.

It is an arithmetic number, because the mean of its divisors is an integer number (22096800).

Almost surely, 2^621752325 is an apocalyptic number.

It is an amenable number.

621752325 is a deficient number, since it is larger than the sum of its proper divisors (438894075).

621752325 is a wasteful number, since it uses less digits than its factorization.

621752325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122 (or 2117 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 621752325 is about 24934.9619009133. The cubic root of 621752325 is about 853.5044818491.

The spelling of 621752325 in words is "six hundred twenty-one million, seven hundred fifty-two thousand, three hundred twenty-five".