7905500401 has 4 divisors (see below), whose sum is σ = 8119162612. Its totient is φ = 7691838192.

The previous prime is 7905500377. The next prime is 7905500437. The reversal of 7905500401 is 1040055097.

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 4647830625 + 3257669776 = 68175^2 + 57076^2 .

It is a cyclic number.

It is not a de Polignac number, because 7905500401 - 2²⁵ = 7871945969 is a prime.

It is a super-2 number, since 2×7905500401² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7905500441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106831050 + ... + 106831123.

It is an arithmetic number, because the mean of its divisors is an integer number (2029790653).

Almost surely, 2^7905500401 is an apocalyptic number.

It is an amenable number.

7905500401 is a deficient number, since it is larger than the sum of its proper divisors (213662211).

7905500401 is a wasteful number, since it uses less digits than its factorization.

7905500401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213662210.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 7905500401 is about 88912.8809622093. The cubic root of 7905500401 is about 1992.0938207647.

Adding to 7905500401 its reverse (1040055097), we get a palindrome (8945555498).

The spelling of 7905500401 in words is "seven billion, nine hundred five million, five hundred thousand, four hundred one".