40245030251 has 4 divisors (see below), whose sum is σ = 40245470400. Its totient is φ = 40244590104.

The previous prime is 40245030197. The next prime is 40245030271. The reversal of 40245030251 is 15203054204.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40245030251 - 2¹⁴ = 40245013867 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40245030251.

It is not an unprimeable number, because it can be changed into a prime (40245030271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25691 + ... + 284868.

It is an arithmetic number, because the mean of its divisors is an integer number (10061367600).

Almost surely, 2^40245030251 is an apocalyptic number.

40245030251 is a deficient number, since it is larger than the sum of its proper divisors (440149).

40245030251 is a wasteful number, since it uses less digits than its factorization.

40245030251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440148.

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

Adding to 40245030251 its reverse (15203054204), we get a palindrome (55448084455).

The spelling of 40245030251 in words is "forty billion, two hundred forty-five million, thirty thousand, two hundred fifty-one".