5257251628 has 12 divisors (see below), whose sum is σ = 9202759272. Its totient is φ = 2627891840.

The previous prime is 5257251617. The next prime is 5257251647. The reversal of 5257251628 is 8261527525.

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 3 ways as a sum of consecutive naturals, for example, 167218 + ... + 196153.

It is an arithmetic number, because the mean of its divisors is an integer number (766896606).

Almost surely, 2^5257251628 is an apocalyptic number.

It is an amenable number.

5257251628 is a deficient number, since it is larger than the sum of its proper divisors (3945507644).

5257251628 is a wasteful number, since it uses less digits than its factorization.

5257251628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366992 (or 366990 counting only the distinct ones).

The product of its digits is 336000, while the sum is 43.

The square root of 5257251628 is about 72506.9074502561. The cubic root of 5257251628 is about 1738.8131718173.

The spelling of 5257251628 in words is "five billion, two hundred fifty-seven million, two hundred fifty-one thousand, six hundred twenty-eight".