50021253151 has 4 divisors (see below), whose sum is σ = 51184538152. Its totient is φ = 48857968152.

The previous prime is 50021253133. The next prime is 50021253167. The reversal of 50021253151 is 15135212005.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15135212005 = 5 ⋅3027042401.

It is a cyclic number.

It is not a de Polignac number, because 50021253151 - 2¹⁷ = 50021122079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50021253181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581642436 + ... + 581642521.

It is an arithmetic number, because the mean of its divisors is an integer number (12796134538).

Almost surely, 2^50021253151 is an apocalyptic number.

50021253151 is a deficient number, since it is larger than the sum of its proper divisors (1163285001).

50021253151 is a wasteful number, since it uses less digits than its factorization.

50021253151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163285000.

The product of its (nonzero) digits is 1500, while the sum is 25.

Adding to 50021253151 its reverse (15135212005), we get a palindrome (65156465156).

The spelling of 50021253151 in words is "fifty billion, twenty-one million, two hundred fifty-three thousand, one hundred fifty-one".