6220025545 has 4 divisors (see below), whose sum is σ = 7464030660. Its totient is φ = 4976020432.

The previous prime is 6220025521. The next prime is 6220025593. The reversal of 6220025545 is 5455200226.

It is a happy number.

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 1127347776 + 5092677769 = 33576^2 + 71363^2 .

It is a cyclic number.

It is not a de Polignac number, because 6220025545 - 2¹¹ = 6220023497 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622002550 + ... + 622002559.

It is an arithmetic number, because the mean of its divisors is an integer number (1866007665).

Almost surely, 2^6220025545 is an apocalyptic number.

It is an amenable number.

6220025545 is a deficient number, since it is larger than the sum of its proper divisors (1244005115).

6220025545 is a wasteful number, since it uses less digits than its factorization.

6220025545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244005114.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 6220025545 is about 78867.1385622681. The cubic root of 6220025545 is about 1839.0663135674.

The spelling of 6220025545 in words is "six billion, two hundred twenty million, twenty-five thousand, five hundred forty-five".