4540221425 has 24 divisors (see below), whose sum is σ = 5684207616. Its totient is φ = 3597229440.

The previous prime is 4540221391. The next prime is 4540221443. The reversal of 4540221425 is 5241220454.

It is not a de Polignac number, because 4540221425 - 2²⁰ = 4539172849 is a prime.

It is a super-2 number, since 2×4540221425² = 41227221176058061250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2739197 + ... + 2740853.

It is an arithmetic number, because the mean of its divisors is an integer number (236841984).

Almost surely, 2^4540221425 is an apocalyptic number.

It is an amenable number.

4540221425 is a deficient number, since it is larger than the sum of its proper divisors (1143986191).

4540221425 is a wasteful number, since it uses less digits than its factorization.

4540221425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2657 (or 2652 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 4540221425 is about 67381.1652095747. The cubic root of 4540221425 is about 1655.8678647526.

Adding to 4540221425 its reverse (5241220454), we get a palindrome (9781441879).

The spelling of 4540221425 in words is "four billion, five hundred forty million, two hundred twenty-one thousand, four hundred twenty-five".