620053905 has 16 divisors (see below), whose sum is σ = 996462144. Its totient is φ = 329236800.

The previous prime is 620053883. The next prime is 620053913. The reversal of 620053905 is 509350026.

It is not a de Polignac number, because 620053905 - 2⁵ = 620053873 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87646 + ... + 94455.

It is an arithmetic number, because the mean of its divisors is an integer number (62278884).

Almost surely, 2^620053905 is an apocalyptic number.

It is an amenable number.

620053905 is a deficient number, since it is larger than the sum of its proper divisors (376408239).

620053905 is a wasteful number, since it uses less digits than its factorization.

620053905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182336.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 620053905 is about 24900.8816108988. The cubic root of 620053905 is about 852.7266099216.

The spelling of 620053905 in words is "six hundred twenty million, fifty-three thousand, nine hundred five".