50999300381 has 2 divisors, whose sum is σ = 50999300382. Its totient is φ = 50999300380.

The previous prime is 50999300321. The next prime is 50999300423. The reversal of 50999300381 is 18300399905.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29400589156 + 21598711225 = 171466^2 + 146965^2 .

It is a cyclic number.

It is not a de Polignac number, because 50999300381 - 2¹⁰ = 50999299357 is a prime.

It is a super-2 number, since 2×50999300381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50999300311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25499650190 + 25499650191.

It is an arithmetic number, because the mean of its divisors is an integer number (25499650191).

Almost surely, 2^50999300381 is an apocalyptic number.

It is an amenable number.

50999300381 is a deficient number, since it is larger than the sum of its proper divisors (1).

50999300381 is an equidigital number, since it uses as much as digits as its factorization.

50999300381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 262440, while the sum is 47.

The spelling of 50999300381 in words is "fifty billion, nine hundred ninety-nine million, three hundred thousand, three hundred eighty-one".