15540225461 has 8 divisors (see below), whose sum is σ = 15612600960. Its totient is φ = 15467884768.

The previous prime is 15540225443. The next prime is 15540225529. The reversal of 15540225461 is 16452204551.

15540225461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15540225461 - 2⁶ = 15540225397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15540225401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1421705 + ... + 1432593.

It is an arithmetic number, because the mean of its divisors is an integer number (1951575120).

Almost surely, 2^15540225461 is an apocalyptic number.

It is an amenable number.

15540225461 is a deficient number, since it is larger than the sum of its proper divisors (72375499).

15540225461 is a wasteful number, since it uses less digits than its factorization.

15540225461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17403.

The product of its (nonzero) digits is 48000, while the sum is 35.

The spelling of 15540225461 in words is "fifteen billion, five hundred forty million, two hundred twenty-five thousand, four hundred sixty-one".