620504253 has 16 divisors (see below), whose sum is σ = 920819200. Its totient is φ = 412970400.

The previous prime is 620504249. The next prime is 620504263. The reversal of 620504253 is 352405026.

It is not a de Polignac number, because 620504253 - 2² = 620504249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620504243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2893 + ... + 35346.

It is an arithmetic number, because the mean of its divisors is an integer number (57551200).

Almost surely, 2^620504253 is an apocalyptic number.

It is an amenable number.

620504253 is a deficient number, since it is larger than the sum of its proper divisors (300314947).

620504253 is a wasteful number, since it uses less digits than its factorization.

620504253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38849 (or 38843 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 620504253 is about 24909.9227818956. The cubic root of 620504253 is about 852.9330063789.

Adding to 620504253 its reverse (352405026), we get a palindrome (972909279).

The spelling of 620504253 in words is "six hundred twenty million, five hundred four thousand, two hundred fifty-three".