5428007257 has 8 divisors (see below), whose sum is σ = 5521171680. Its totient is φ = 5334881760.

The previous prime is 5428007219. The next prime is 5428007269. The reversal of 5428007257 is 7527008245.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5428007257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5428007857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480757 + ... + 491917.

It is an arithmetic number, because the mean of its divisors is an integer number (690146460).

Almost surely, 2^5428007257 is an apocalyptic number.

It is an amenable number.

5428007257 is a deficient number, since it is larger than the sum of its proper divisors (93164423).

5428007257 is a wasteful number, since it uses less digits than its factorization.

5428007257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19463.

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 5428007257 is about 73675.0110756693. The cubic root of 5428007257 is about 1757.4385148327.

The spelling of 5428007257 in words is "five billion, four hundred twenty-eight million, seven thousand, two hundred fifty-seven".