5720621953 has 4 divisors (see below), whose sum is σ = 5720872788. Its totient is φ = 5720371120.

The previous prime is 5720621947. The next prime is 5720621969. The reversal of 5720621953 is 3591260275.

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 328950769 + 5391671184 = 18137^2 + 73428^2 .

It is a cyclic number.

It is not a de Polignac number, because 5720621953 - 2¹³ = 5720613761 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5720621903) 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, 87358 + ... + 138103.

It is an arithmetic number, because the mean of its divisors is an integer number (1430218197).

Almost surely, 2^5720621953 is an apocalyptic number.

It is an amenable number.

5720621953 is a deficient number, since it is larger than the sum of its proper divisors (250835).

5720621953 is a wasteful number, since it uses less digits than its factorization.

5720621953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250834.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 5720621953 is about 75634.7932700288. The cubic root of 5720621953 is about 1788.4676244916.

The spelling of 5720621953 in words is "five billion, seven hundred twenty million, six hundred twenty-one thousand, nine hundred fifty-three".