620051459 has 4 divisors (see below), whose sum is σ = 620226504. Its totient is φ = 619876416.

The previous prime is 620051447. The next prime is 620051483. The reversal of 620051459 is 954150026.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620051459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620051359) 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, 82097 + ... + 89330.

It is an arithmetic number, because the mean of its divisors is an integer number (155056626).

Almost surely, 2^620051459 is an apocalyptic number.

620051459 is a deficient number, since it is larger than the sum of its proper divisors (175045).

620051459 is a wasteful number, since it uses less digits than its factorization.

620051459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175044.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 620051459 is about 24900.8324961235. The cubic root of 620051459 is about 852.7254886363.

The spelling of 620051459 in words is "six hundred twenty million, fifty-one thousand, four hundred fifty-nine".