40450251005 has 4 divisors (see below), whose sum is σ = 48540301212. Its totient is φ = 32360200800.

The previous prime is 40450250983. The next prime is 40450251011. The reversal of 40450251005 is 50015205404.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17338042276 + 23112208729 = 131674^2 + 152027^2 .

It is not a de Polignac number, because 40450251005 - 2⁸ = 40450250749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4045025096 + ... + 4045025105.

It is an arithmetic number, because the mean of its divisors is an integer number (12135075303).

Almost surely, 2^40450251005 is an apocalyptic number.

It is an amenable number.

40450251005 is a deficient number, since it is larger than the sum of its proper divisors (8090050207).

40450251005 is an equidigital number, since it uses as much as digits as its factorization.

40450251005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8090050206.

The product of its (nonzero) digits is 4000, while the sum is 26.

Adding to 40450251005 its reverse (50015205404), we get a palindrome (90465456409).

The spelling of 40450251005 in words is "forty billion, four hundred fifty million, two hundred fifty-one thousand, five".