5257505420 has 24 divisors (see below), whose sum is σ = 11120197200. Its totient is φ = 2087871552.

The previous prime is 5257505369. The next prime is 5257505443. The reversal of 5257505420 is 245057525.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 942815 + ... + 948374.

It is an arithmetic number, because the mean of its divisors is an integer number (463341550).

Almost surely, 2^5257505420 is an apocalyptic number.

It is an amenable number.

5257505420 is an abundant number, since it is smaller than the sum of its proper divisors (5862691780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5257505420 is a wasteful number, since it uses less digits than its factorization.

5257505420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891337 (or 1891335 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 35.

The square root of 5257505420 is about 72508.6575520468. The cubic root of 5257505420 is about 1738.8411515682.

The spelling of 5257505420 in words is "five billion, two hundred fifty-seven million, five hundred five thousand, four hundred twenty".