501202376401 has 4 divisors (see below), whose sum is σ = 514748386612. Its totient is φ = 487656366192.

The previous prime is 501202376333. The next prime is 501202376431. The reversal of 501202376401 is 104673202105.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104673202105 = 5 ⋅20934640421.

It can be written as a sum of positive squares in 2 ways, for example, as 413964846801 + 87237529600 = 643401^2 + 295360^2 .

It is a cyclic number.

It is not a de Polignac number, because 501202376401 - 2⁹ = 501202375889 is a prime.

It is a super-2 number, since 2×501202376401² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501202376431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6773005050 + ... + 6773005123.

It is an arithmetic number, because the mean of its divisors is an integer number (128687096653).

Almost surely, 2^501202376401 is an apocalyptic number.

It is an amenable number.

501202376401 is a deficient number, since it is larger than the sum of its proper divisors (13546010211).

501202376401 is a wasteful number, since it uses less digits than its factorization.

501202376401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13546010210.

The product of its (nonzero) digits is 10080, while the sum is 31.

Adding to 501202376401 its reverse (104673202105), we get a palindrome (605875578506).

The spelling of 501202376401 in words is "five hundred one billion, two hundred two million, three hundred seventy-six thousand, four hundred one".