4551225661 has 8 divisors (see below), whose sum is σ = 4762398464. Its totient is φ = 4344075360.

The previous prime is 4551225659. The next prime is 4551225739. The reversal of 4551225661 is 1665221554.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4551225661 - 2¹ = 4551225659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4551225661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4551225611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1003311 + ... + 1007836.

It is an arithmetic number, because the mean of its divisors is an integer number (595299808).

Almost surely, 2^4551225661 is an apocalyptic number.

It is an amenable number.

4551225661 is a deficient number, since it is larger than the sum of its proper divisors (211172803).

4551225661 is a wasteful number, since it uses less digits than its factorization.

4551225661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011251.

The product of its digits is 72000, while the sum is 37.

The square root of 4551225661 is about 67462.7724081956. The cubic root of 4551225661 is about 1657.2045733636.

The spelling of 4551225661 in words is "four billion, five hundred fifty-one million, two hundred twenty-five thousand, six hundred sixty-one".