40551401625 has 96 divisors (see below), whose sum is σ = 79116890112. Its totient is φ = 18390758400.

The previous prime is 40551401623. The next prime is 40551401629. The reversal of 40551401625 is 52610415504.

It is not a de Polignac number, because 40551401625 - 2¹ = 40551401623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40551401623) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2324937 + ... + 2342313.

It is an arithmetic number, because the mean of its divisors is an integer number (824134272).

Almost surely, 2^40551401625 is an apocalyptic number.

It is an amenable number.

40551401625 is a deficient number, since it is larger than the sum of its proper divisors (38565488487).

40551401625 is a wasteful number, since it uses less digits than its factorization.

40551401625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17536 (or 17519 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 40551401625 in words is "forty billion, five hundred fifty-one million, four hundred one thousand, six hundred twenty-five".