620252525741 has 4 divisors (see below), whose sum is σ = 641640543900. Its totient is φ = 598864507584.

The previous prime is 620252525731. The next prime is 620252525743. The reversal of 620252525741 is 147525252026.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 155830720516 + 464421805225 = 394754^2 + 681485^2 .

It is a cyclic number.

It is not a de Polignac number, because 620252525741 - 2¹⁸ = 620252263597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620252525743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10694009036 + ... + 10694009093.

It is an arithmetic number, because the mean of its divisors is an integer number (160410135975).

Almost surely, 2^620252525741 is an apocalyptic number.

It is an amenable number.

620252525741 is a deficient number, since it is larger than the sum of its proper divisors (21388018159).

620252525741 is a wasteful number, since it uses less digits than its factorization.

620252525741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21388018158.

The product of its (nonzero) digits is 336000, while the sum is 41.

Adding to 620252525741 its reverse (147525252026), we get a palindrome (767777777767).

The spelling of 620252525741 in words is "six hundred twenty billion, two hundred fifty-two million, five hundred twenty-five thousand, seven hundred forty-one".