15506050001 has 32 divisors (see below), whose sum is σ = 17749197312. Its totient is φ = 13437135360.

The previous prime is 15506049997. The next prime is 15506050051. The reversal of 15506050001 is 10005060551.

It is a cyclic number.

It is not a de Polignac number, because 15506050001 - 2² = 15506049997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15506050051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15010181 + ... + 15011213.

It is an arithmetic number, because the mean of its divisors is an integer number (554662416).

Almost surely, 2^15506050001 is an apocalyptic number.

It is an amenable number.

15506050001 is a deficient number, since it is larger than the sum of its proper divisors (2243147311).

15506050001 is a wasteful number, since it uses less digits than its factorization.

15506050001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953.

The product of its (nonzero) digits is 750, while the sum is 23.

The spelling of 15506050001 in words is "fifteen billion, five hundred six million, fifty thousand, one".