5420520552251 has 32 divisors (see below), whose sum is σ = 6294198322176. Its totient is φ = 4572288000000.

The previous prime is 5420520552203. The next prime is 5420520552269. The reversal of 5420520552251 is 1522550250245.

It is a de Polignac number, because none of the positive numbers 2^k-5420520552251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5420520552451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 268851611 + ... + 268871771.

It is an arithmetic number, because the mean of its divisors is an integer number (196693697568).

Almost surely, 2^{5420520552251} is an apocalyptic number.

5420520552251 is a deficient number, since it is larger than the sum of its proper divisors (873677769925).

5420520552251 is a wasteful number, since it uses less digits than its factorization.

5420520552251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22683.

The product of its (nonzero) digits is 200000, while the sum is 38.

The spelling of 5420520552251 in words is "five trillion, four hundred twenty billion, five hundred twenty million, five hundred fifty-two thousand, two hundred fifty-one".