45440252031 has 16 divisors (see below), whose sum is σ = 61883555328. Its totient is φ = 29645380800.

The previous prime is 45440251999. The next prime is 45440252057. The reversal of 45440252031 is 13025204454.

It is not a de Polignac number, because 45440252031 - 2⁵ = 45440251999 is a prime.

It is a super-2 number, since 2×45440252031² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45440252031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45440259031) 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, 1674451 + ... + 1701371.

It is an arithmetic number, because the mean of its divisors is an integer number (3867722208).

Almost surely, 2^45440252031 is an apocalyptic number.

45440252031 is a deficient number, since it is larger than the sum of its proper divisors (16443303297).

45440252031 is a wasteful number, since it uses less digits than its factorization.

45440252031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38942.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 45440252031 its reverse (13025204454), we get a palindrome (58465456485).

The spelling of 45440252031 in words is "forty-five billion, four hundred forty million, two hundred fifty-two thousand, thirty-one".