5255420750638 has 32 divisors (see below), whose sum is σ = 8094360532608. Its totient is φ = 2557608480000.

The previous prime is 5255420750633. The next prime is 5255420750689. The reversal of 5255420750638 is 8360570245525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5255420750633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61354456 + ... + 61440052.

It is an arithmetic number, because the mean of its divisors is an integer number (252948766644).

Almost surely, 2^{5255420750638} is an apocalyptic number.

5255420750638 is a deficient number, since it is larger than the sum of its proper divisors (2838939781970).

5255420750638 is a wasteful number, since it uses less digits than its factorization.

5255420750638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87388.

The product of its (nonzero) digits is 10080000, while the sum is 52.

The spelling of 5255420750638 in words is "five trillion, two hundred fifty-five billion, four hundred twenty million, seven hundred fifty thousand, six hundred thirty-eight".