50156054613561 has 32 divisors (see below), whose sum is σ = 73201607297280. Its totient is φ = 30358439251200.

The previous prime is 50156054613547. The next prime is 50156054613583. The reversal of 50156054613561 is 16531645065105.

It is a happy number.

It is not a de Polignac number, because 50156054613561 - 2³⁸ = 49881176706617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50156054613561.

It is not an unprimeable number, because it can be changed into a prime (50156054613761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92179060 + ... + 92721578.

It is an arithmetic number, because the mean of its divisors is an integer number (2287550228040).

Almost surely, 2^{50156054613561} is an apocalyptic number.

It is an amenable number.

50156054613561 is a deficient number, since it is larger than the sum of its proper divisors (23045552683719).

50156054613561 is a wasteful number, since it uses less digits than its factorization.

50156054613561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581457.

The product of its (nonzero) digits is 1620000, while the sum is 48.

Adding to 50156054613561 its reverse (16531645065105), we get a palindrome (66687699678666).

The spelling of 50156054613561 in words is "fifty trillion, one hundred fifty-six billion, fifty-four million, six hundred thirteen thousand, five hundred sixty-one".