5221851645254 has 4 divisors (see below), whose sum is σ = 7832777467884. Its totient is φ = 2610925822626.

The previous prime is 5221851645253. The next prime is 5221851645343. The reversal of 5221851645254 is 4525461581225.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5221851645253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1305462911312 + ... + 1305462911315.

It is an arithmetic number, because the mean of its divisors is an integer number (1958194366971).

Almost surely, 2^{5221851645254} is an apocalyptic number.

5221851645254 is a deficient number, since it is larger than the sum of its proper divisors (2610925822630).

5221851645254 is a wasteful number, since it uses less digits than its factorization.

5221851645254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610925822629.

The product of its digits is 3840000, while the sum is 50.

The spelling of 5221851645254 in words is "five trillion, two hundred twenty-one billion, eight hundred fifty-one million, six hundred forty-five thousand, two hundred fifty-four".