401425250543 has 4 divisors (see below), whose sum is σ = 408999311928. Its totient is φ = 393851189160.

The previous prime is 401425250539. The next prime is 401425250579. The reversal of 401425250543 is 345052524104.

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

It is a cyclic number.

It is not a de Polignac number, because 401425250543 - 2² = 401425250539 is a prime.

It is a super-2 number, since 2×401425250543² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401425250533) 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, 3787030613 + ... + 3787030718.

It is an arithmetic number, because the mean of its divisors is an integer number (102249827982).

Almost surely, 2^401425250543 is an apocalyptic number.

401425250543 is a deficient number, since it is larger than the sum of its proper divisors (7574061385).

401425250543 is an equidigital number, since it uses as much as digits as its factorization.

401425250543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7574061384.

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 401425250543 its reverse (345052524104), we get a palindrome (746477774647).

The spelling of 401425250543 in words is "four hundred one billion, four hundred twenty-five million, two hundred fifty thousand, five hundred forty-three".