50178152552409 has 36 divisors (see below), whose sum is σ = 85260286792980. Its totient is φ = 28351058883840.

The previous prime is 50178152552401. The next prime is 50178152552417. The reversal of 50178152552409 is 90425525187105.

It is a happy number.

50178152552409 is a `hidden beast` number, since 5 + 0 + 1 + 7 + 81 + 5 + 2 + 552 + 4 + 0 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (50178152552401) and next prime (50178152552417).

It can be written as a sum of positive squares in 2 ways, for example, as 8587261742409 + 41590890810000 = 2930403^2 + 6449100^2 .

It is not a de Polignac number, because 50178152552409 - 2³ = 50178152552401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50178152552401) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 639189172 + ... + 639267669.

It is an arithmetic number, because the mean of its divisors is an integer number (2368341299805).

Almost surely, 2^{50178152552409} is an apocalyptic number.

It is an amenable number.

50178152552409 is a deficient number, since it is larger than the sum of its proper divisors (35082134240571).

50178152552409 is a wasteful number, since it uses less digits than its factorization.

50178152552409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278456950 (or 1278456940 counting only the distinct ones).

The product of its (nonzero) digits is 5040000, while the sum is 54.

The spelling of 50178152552409 in words is "fifty trillion, one hundred seventy-eight billion, one hundred fifty-two million, five hundred fifty-two thousand, four hundred nine".