5431251445 has 4 divisors (see below), whose sum is σ = 6517501740. Its totient is φ = 4345001152.

The previous prime is 5431251421. The next prime is 5431251523. The reversal of 5431251445 is 5441521345.

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 601279441 + 4829972004 = 24521^2 + 69498^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5431251445 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5431251445.

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, 543125140 + ... + 543125149.

It is an arithmetic number, because the mean of its divisors is an integer number (1629375435).

Almost surely, 2^5431251445 is an apocalyptic number.

It is an amenable number.

5431251445 is a deficient number, since it is larger than the sum of its proper divisors (1086250295).

5431251445 is a wasteful number, since it uses less digits than its factorization.

5431251445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086250294.

The product of its digits is 48000, while the sum is 34.

The square root of 5431251445 is about 73697.0246685713. The cubic root of 5431251445 is about 1757.7885711961.

The spelling of 5431251445 in words is "five billion, four hundred thirty-one million, two hundred fifty-one thousand, four hundred forty-five".