40002425531 has 2 divisors, whose sum is σ = 40002425532. Its totient is φ = 40002425530.

The previous prime is 40002425503. The next prime is 40002425557. The reversal of 40002425531 is 13552420004.

It is a happy number.

It is an a-pointer prime, because the next prime (40002425557) can be obtained adding 40002425531 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40002425531 - 2³⁴ = 22822556347 is a prime.

It is a super-2 number, since 2×40002425531² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40002425531.

It is not a weakly prime, because it can be changed into another prime (40002425231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20001212765 + 20001212766.

It is an arithmetic number, because the mean of its divisors is an integer number (20001212766).

Almost surely, 2^40002425531 is an apocalyptic number.

40002425531 is a deficient number, since it is larger than the sum of its proper divisors (1).

40002425531 is an equidigital number, since it uses as much as digits as its factorization.

40002425531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 40002425531 its reverse (13552420004), we get a palindrome (53554845535).

The spelling of 40002425531 in words is "forty billion, two million, four hundred twenty-five thousand, five hundred thirty-one".