50406561545 has 8 divisors (see below), whose sum is σ = 60495623496. Its totient is φ = 40320082816.

The previous prime is 50406561533. The next prime is 50406561553. The reversal of 50406561545 is 54516560405.

It can be written as a sum of positive squares in 4 ways, for example, as 7164606736 + 43241954809 = 84644^2 + 207947^2 .

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 50406561545 - 2⁴ = 50406561529 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 602612 + ... + 681141.

It is an arithmetic number, because the mean of its divisors is an integer number (7561952937).

Almost surely, 2^50406561545 is an apocalyptic number.

It is an amenable number.

50406561545 is a deficient number, since it is larger than the sum of its proper divisors (10089061951).

50406561545 is a wasteful number, since it uses less digits than its factorization.

50406561545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291611.

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 50406561545 in words is "fifty billion, four hundred six million, five hundred sixty-one thousand, five hundred forty-five".