50042123501 has 2 divisors, whose sum is σ = 50042123502. Its totient is φ = 50042123500.

The previous prime is 50042123473. The next prime is 50042123507. The reversal of 50042123501 is 10532124005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41483098276 + 8559025225 = 203674^2 + 92515^2 .

It is a cyclic number.

It is not a de Polignac number, because 50042123501 - 2¹⁴ = 50042107117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50042123507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25021061750 + 25021061751.

It is an arithmetic number, because the mean of its divisors is an integer number (25021061751).

Almost surely, 2^50042123501 is an apocalyptic number.

It is an amenable number.

50042123501 is a deficient number, since it is larger than the sum of its proper divisors (1).

50042123501 is an equidigital number, since it uses as much as digits as its factorization.

50042123501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 50042123501 its reverse (10532124005), we get a palindrome (60574247506).

The spelling of 50042123501 in words is "fifty billion, forty-two million, one hundred twenty-three thousand, five hundred one".