42431551424325 has 72 divisors (see below), whose sum is σ = 88704727557888. Its totient is φ = 18984572519040.

The previous prime is 42431551424267. The next prime is 42431551424347. The reversal of 42431551424325 is 52342415513424.

42431551424325 is a `hidden beast` number, since 4 + 2 + 4 + 31 + 551 + 4 + 2 + 43 + 25 = 666.

It is not a de Polignac number, because 42431551424325 - 2⁶ = 42431551424261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 286528822 + ... + 286676871.

Almost surely, 2^{42431551424325} is an apocalyptic number.

42431551424325 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42431551424325 is an abundant number, since it is smaller than the sum of its proper divisors (46273176133563).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42431551424325 is a wasteful number, since it uses less digits than its factorization.

42431551424325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573205763 (or 573205755 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 45.

Adding to 42431551424325 its reverse (52342415513424), we get a palindrome (94773966937749).

The spelling of 42431551424325 in words is "forty-two trillion, four hundred thirty-one billion, five hundred fifty-one million, four hundred twenty-four thousand, three hundred twenty-five".