40025471625 has 112 divisors (see below), whose sum is σ = 75176295168. Its totient is φ = 21266388000.

The previous prime is 40025471623. The next prime is 40025471639. The reversal of 40025471625 is 52617452004.

It is a happy number.

40025471625 is a `hidden beast` number, since 4 + 0 + 0 + 25 + 4 + 7 + 1 + 625 = 666.

It is not a de Polignac number, because 40025471625 - 2¹ = 40025471623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40025471625.

It is not an unprimeable number, because it can be changed into a prime (40025471621) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 30161712 + ... + 30163038.

Almost surely, 2^40025471625 is an apocalyptic number.

40025471625 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40025471625 is a deficient number, since it is larger than the sum of its proper divisors (35150823543).

40025471625 is an equidigital number, since it uses as much as digits as its factorization.

40025471625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691 (or 1666 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The spelling of 40025471625 in words is "forty billion, twenty-five million, four hundred seventy-one thousand, six hundred twenty-five".