15050050040 has 32 divisors (see below), whose sum is σ = 33987591360. Its totient is φ = 5997801600.

The previous prime is 15050050039. The next prime is 15050050049. The reversal of 15050050040 is 4005005051.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 15050049994 and 15050050021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15050050049) 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, 683351 + ... + 705030.

It is an arithmetic number, because the mean of its divisors is an integer number (1062112230).

Almost surely, 2^15050050040 is an apocalyptic number.

15050050040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15050050040 is an abundant number, since it is smaller than the sum of its proper divisors (18937541320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15050050040 is a wasteful number, since it uses less digits than its factorization.

15050050040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388663 (or 1388659 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

Adding to 15050050040 its reverse (4005005051), we get a palindrome (19055055091).

The spelling of 15050050040 in words is "fifteen billion, fifty million, fifty thousand, forty".