50551161651 has 12 divisors (see below), whose sum is σ = 73741299840. Its totient is φ = 33367102800.

The previous prime is 50551161643. The next prime is 50551161653. The reversal of 50551161651 is 15616115505.

It is a happy number.

50551161651 is a `hidden beast` number, since 50 + 551 + 1 + 6 + 1 + 6 + 51 = 666.

It is not a de Polignac number, because 50551161651 - 2³ = 50551161643 is a prime.

It is a super-3 number, since 3×50551161651³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (50551161653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27805011 + ... + 27806828.

It is an arithmetic number, because the mean of its divisors is an integer number (6145108320).

Almost surely, 2^50551161651 is an apocalyptic number.

50551161651 is a deficient number, since it is larger than the sum of its proper divisors (23190138189).

50551161651 is a wasteful number, since it uses less digits than its factorization.

50551161651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55611946 (or 55611943 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 36.

The spelling of 50551161651 in words is "fifty billion, five hundred fifty-one million, one hundred sixty-one thousand, six hundred fifty-one".