620613524253 has 4 divisors (see below), whose sum is σ = 827484699008. Its totient is φ = 413742349500.

The previous prime is 620613524231. The next prime is 620613524273. The reversal of 620613524253 is 352425316026.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 620613524253 - 2⁵ = 620613524221 is a prime.

It is a super-2 number, since 2×620613524253² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620613524273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103435587373 + ... + 103435587378.

It is an arithmetic number, because the mean of its divisors is an integer number (206871174752).

Almost surely, 2^620613524253 is an apocalyptic number.

It is an amenable number.

620613524253 is a deficient number, since it is larger than the sum of its proper divisors (206871174755).

620613524253 is a wasteful number, since it uses less digits than its factorization.

620613524253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206871174754.

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 620613524253 in words is "six hundred twenty billion, six hundred thirteen million, five hundred twenty-four thousand, two hundred fifty-three".