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55353901731 = 319971121083
BaseRepresentation
bin110011100011010110…
…011000001010100011
312021212201010120002120
4303203112120022203
51401331044323411
641232414115323
73666502254462
oct634326301243
9167781116076
1055353901731
112152591a727
12a889aabb43
1352b201c70b
1429717d69d9
15168e906106
hexce35982a3

55353901731 has 8 divisors (see below), whose sum is σ = 77689686720. Its totient is φ = 34960358952.

The previous prime is 55353901727. The next prime is 55353901747. The reversal of 55353901731 is 13710935355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55353901731 - 22 = 55353901727 is a prime.

It is a super-2 number, since 2×553539017312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55353901711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485560485 + ... + 485560598.

It is an arithmetic number, because the mean of its divisors is an integer number (9711210840).

Almost surely, 255353901731 is an apocalyptic number.

55353901731 is a deficient number, since it is larger than the sum of its proper divisors (22335784989).

55353901731 is a wasteful number, since it uses less digits than its factorization.

55353901731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971121105.

The product of its (nonzero) digits is 212625, while the sum is 42.

The spelling of 55353901731 in words is "fifty-five billion, three hundred fifty-three million, nine hundred one thousand, seven hundred thirty-one".

Divisors: 1 3 19 57 971121083 2913363249 18451300577 55353901731