40040051925 has 24 divisors (see below), whose sum is σ = 66374268640. Its totient is φ = 21298334400.

The previous prime is 40040051911. The next prime is 40040051927. The reversal of 40040051925 is 52915004004.

It is not a de Polignac number, because 40040051925 - 2⁵ = 40040051893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40040051892 and 40040051901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40040051927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 675886 + ... + 732735.

Almost surely, 2^40040051925 is an apocalyptic number.

It is an amenable number.

40040051925 is a deficient number, since it is larger than the sum of its proper divisors (26334216715).

40040051925 is a wasteful number, since it uses less digits than its factorization.

40040051925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409013 (or 1409008 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 40040051925 its reverse (52915004004), we get a palindrome (92955055929).

The spelling of 40040051925 in words is "forty billion, forty million, fifty-one thousand, nine hundred twenty-five".