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54451505797 = 1331631214129
BaseRepresentation
bin110010101101100100…
…000000101010000101
312012112211010002120221
4302231210000222011
51343004041141142
641003100424341
73635234106523
oct625544005205
9165484102527
1054451505797
1121102501267
12a6778480b1
13519a097620
1428c7a15313
15163a5a4767
hexcad900a85

54451505797 has 16 divisors (see below), whose sum is σ = 60627911680. Its totient is φ = 48564230400.

The previous prime is 54451505789. The next prime is 54451505831. The reversal of 54451505797 is 79750515445.

It is a cyclic number.

It is not a de Polignac number, because 54451505797 - 23 = 54451505789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54451505777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147229 + ... + 361357.

It is an arithmetic number, because the mean of its divisors is an integer number (3789244480).

Almost surely, 254451505797 is an apocalyptic number.

It is an amenable number.

54451505797 is a deficient number, since it is larger than the sum of its proper divisors (6176405883).

54451505797 is a wasteful number, since it uses less digits than its factorization.

54451505797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214804.

The product of its (nonzero) digits is 4410000, while the sum is 52.

The spelling of 54451505797 in words is "fifty-four billion, four hundred fifty-one million, five hundred five thousand, seven hundred ninety-seven".

Divisors: 1 13 31 403 631 8203 19561 214129 254293 2783677 6637999 86293987 135115399 1756500187 4188577369 54451505797