5255401637 has 4 divisors (see below), whose sum is σ = 5263975500. Its totient is φ = 5246827776.

The previous prime is 5255401631. The next prime is 5255401639. The reversal of 5255401637 is 7361045525.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 554790916 + 4700610721 = 23554^2 + 68561^2 .

It is a cyclic number.

It is not a de Polignac number, because 5255401637 - 2¹⁰ = 5255400613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5255401637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5255401631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4286012 + ... + 4287237.

It is an arithmetic number, because the mean of its divisors is an integer number (1315993875).

Almost surely, 2^5255401637 is an apocalyptic number.

It is an amenable number.

5255401637 is a deficient number, since it is larger than the sum of its proper divisors (8573863).

5255401637 is an equidigital number, since it uses as much as digits as its factorization.

5255401637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8573862.

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 5255401637 is about 72494.1489845905. The cubic root of 5255401637 is about 1738.6091890559.

The spelling of 5255401637 in words is "five billion, two hundred fifty-five million, four hundred one thousand, six hundred thirty-seven".