45251304431 has 16 divisors (see below), whose sum is σ = 46597019040. Its totient is φ = 43919715840.

The previous prime is 45251304389. The next prime is 45251304451. The reversal of 45251304431 is 13440315254.

45251304431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45251304431 is a prime.

It is a super-2 number, since 2×45251304431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45251304451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5215565 + ... + 5224233.

It is an arithmetic number, because the mean of its divisors is an integer number (2912313690).

Almost surely, 2^45251304431 is an apocalyptic number.

45251304431 is a deficient number, since it is larger than the sum of its proper divisors (1345714609).

45251304431 is a wasteful number, since it uses less digits than its factorization.

45251304431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9466.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 45251304431 its reverse (13440315254), we get a palindrome (58691619685).

The spelling of 45251304431 in words is "forty-five billion, two hundred fifty-one million, three hundred four thousand, four hundred thirty-one".