43325420440455 has 12 divisors (see below), whose sum is σ = 75097395430200. Its totient is φ = 23106890901552.

The previous prime is 43325420440453. The next prime is 43325420440459. The reversal of 43325420440455 is 55404402452334.

43325420440455 is a `hidden beast` number, since 4 + 3 + 32 + 5 + 4 + 204 + 404 + 5 + 5 = 666.

It is not a de Polignac number, because 43325420440455 - 2¹ = 43325420440453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 962787120899 = 43325420440455 / (4 + 3 + 3 + 2 + 5 + 4 + 2 + 0 + 4 + 4 + 0 + 4 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 43325420440455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43325420440453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 481393560405 + ... + 481393560494.

It is an arithmetic number, because the mean of its divisors is an integer number (6258116285850).

Almost surely, 2^{43325420440455} is an apocalyptic number.

43325420440455 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

43325420440455 is a deficient number, since it is larger than the sum of its proper divisors (31771974989745).

43325420440455 is a wasteful number, since it uses less digits than its factorization.

43325420440455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962787120910 (or 962787120907 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 45.

Adding to 43325420440455 its reverse (55404402452334), we get a palindrome (98729822892789).

The spelling of 43325420440455 in words is "forty-three trillion, three hundred twenty-five billion, four hundred twenty million, four hundred forty thousand, four hundred fifty-five".