50615505505565 has 64 divisors (see below), whose sum is σ = 84181818212352. Its totient is φ = 28185876460800.

The previous prime is 50615505505561. The next prime is 50615505505589. The reversal of 50615505505565 is 56550550551605.

It is not a de Polignac number, because 50615505505565 - 2² = 50615505505561 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50615505505561) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 162957557 + ... + 163267866.

It is an arithmetic number, because the mean of its divisors is an integer number (1315340909568).

Almost surely, 2^{50615505505565} is an apocalyptic number.

50615505505565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

50615505505565 is a deficient number, since it is larger than the sum of its proper divisors (33566312706787).

50615505505565 is a wasteful number, since it uses less digits than its factorization.

50615505505565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326225490.

The product of its (nonzero) digits is 14062500, while the sum is 53.

The spelling of 50615505505565 in words is "fifty trillion, six hundred fifteen billion, five hundred five million, five hundred five thousand, five hundred sixty-five".