5638626155 has 4 divisors (see below), whose sum is σ = 6766351392. Its totient is φ = 4510900920.

The previous prime is 5638626043. The next prime is 5638626197. The reversal of 5638626155 is 5516268365.

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

It is not a de Polignac number, because 5638626155 - 2⁸ = 5638625899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563862611 + ... + 563862620.

It is an arithmetic number, because the mean of its divisors is an integer number (1691587848).

Almost surely, 2^5638626155 is an apocalyptic number.

5638626155 is a deficient number, since it is larger than the sum of its proper divisors (1127725237).

5638626155 is a wasteful number, since it uses less digits than its factorization.

5638626155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127725236.

The product of its digits is 1296000, while the sum is 47.

The square root of 5638626155 is about 75090.7860859107. The cubic root of 5638626155 is about 1779.8815469507.

The spelling of 5638626155 in words is "five billion, six hundred thirty-eight million, six hundred twenty-six thousand, one hundred fifty-five".