15005550401 has 2 divisors, whose sum is σ = 15005550402. Its totient is φ = 15005550400.

The previous prime is 15005550389. The next prime is 15005550407. The reversal of 15005550401 is 10405550051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8887964176 + 6117586225 = 94276^2 + 78215^2 .

It is a cyclic number.

It is not a de Polignac number, because 15005550401 - 2⁶ = 15005550337 is a prime.

It is not a weakly prime, because it can be changed into another prime (15005550407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7502775200 + 7502775201.

It is an arithmetic number, because the mean of its divisors is an integer number (7502775201).

Almost surely, 2^15005550401 is an apocalyptic number.

It is an amenable number.

15005550401 is a deficient number, since it is larger than the sum of its proper divisors (1).

15005550401 is an equidigital number, since it uses as much as digits as its factorization.

15005550401 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 spelling of 15005550401 in words is "fifteen billion, five million, five hundred fifty thousand, four hundred one".