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54441425531 = 131415583401
BaseRepresentation
bin110010101100111101…
…100011101001111011
312012112010010222001202
4302230331203221323
51342444001104111
641002100404415
73635052324143
oct625475435173
9165463128052
1054441425531
11210a7846869
12a6743a670b
135197c7837c
1428c654d923
151639762b3b
hexcacf63a7b

54441425531 has 4 divisors (see below), whose sum is σ = 54857009064. Its totient is φ = 54025842000.

The previous prime is 54441425501. The next prime is 54441425557. The reversal of 54441425531 is 13552414445.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54441425531 is a prime.

It is a super-2 number, since 2×544414255312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54441425501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207791570 + ... + 207791831.

It is an arithmetic number, because the mean of its divisors is an integer number (13714252266).

Almost surely, 254441425531 is an apocalyptic number.

54441425531 is a deficient number, since it is larger than the sum of its proper divisors (415583533).

54441425531 is a wasteful number, since it uses less digits than its factorization.

54441425531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415583532.

The product of its digits is 192000, while the sum is 38.

Adding to 54441425531 its reverse (13552414445), we get a palindrome (67993839976).

The spelling of 54441425531 in words is "fifty-four billion, four hundred forty-one million, four hundred twenty-five thousand, five hundred thirty-one".

Divisors: 1 131 415583401 54441425531