15550541 has 2 divisors, whose sum is σ = 15550542. Its totient is φ = 15550540.

The previous prime is 15550523. The next prime is 15550559. The reversal of 15550541 is 14505551.

15550541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (15550523) and next prime (15550559).

It can be written as a sum of positive squares in only one way, i.e., 14853316 + 697225 = 3854^2 + 835^2 .

It is a cyclic number.

It is not a de Polignac number, because 15550541 - 2¹⁸ = 15288397 is a prime.

It is a super-3 number, since 3×15550541³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15550541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15550141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7775270 + 7775271.

It is an arithmetic number, because the mean of its divisors is an integer number (7775271).

Almost surely, 2^15550541 is an apocalyptic number.

It is an amenable number.

15550541 is a deficient number, since it is larger than the sum of its proper divisors (1).

15550541 is an equidigital number, since it uses as much as digits as its factorization.

15550541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 15550541 is about 3943.4174265477. The cubic root of 15550541 is about 249.6022528578.

The spelling of 15550541 in words is "fifteen million, five hundred fifty thousand, five hundred forty-one".