50025721505 has 8 divisors (see below), whose sum is σ = 60037842600. Its totient is φ = 40015926016.

The previous prime is 50025721489. The next prime is 50025721511. The reversal of 50025721505 is 50512752005.

It can be written as a sum of positive squares in 4 ways, for example, as 5976526864 + 44049194641 = 77308^2 + 209879^2 .

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 50025721505 - 2⁴ = 50025721489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533720 + ... + 620409.

It is an arithmetic number, because the mean of its divisors is an integer number (7504730325).

Almost surely, 2^50025721505 is an apocalyptic number.

It is an amenable number.

50025721505 is a deficient number, since it is larger than the sum of its proper divisors (10012121095).

50025721505 is a wasteful number, since it uses less digits than its factorization.

50025721505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162803.

The product of its (nonzero) digits is 17500, while the sum is 32.

The spelling of 50025721505 in words is "fifty billion, twenty-five million, seven hundred twenty-one thousand, five hundred five".