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54252190587 = 372192112
BaseRepresentation
bin110010100001101011…
…101011101101111011
312012000221001211112010
4302201223223231323
51342102030044322
640531220421003
73630264003600
oct624153535573
9165027054463
1054252190587
112100aa46851
12a620b47763
1351679bcc2a
1428a93706a7
151627d3320c
hexca1aebb7b

54252190587 has 18 divisors (see below), whose sum is σ = 84150635124. Its totient is φ = 30999638040.

The previous prime is 54252190547. The next prime is 54252190637. The reversal of 54252190587 is 78509125245.

It is not a de Polignac number, because 54252190587 - 26 = 54252190523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54252190537) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2814412 + ... + 2833622.

Almost surely, 254252190587 is an apocalyptic number.

54252190587 is a deficient number, since it is larger than the sum of its proper divisors (29898444537).

54252190587 is an frugal number, since it uses more digits than its factorization.

54252190587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38439 (or 19221 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 48.

Multiplying 54252190587 by its sum of digits (48), we get a square (2604105148176 = 16137242).

The spelling of 54252190587 in words is "fifty-four billion, two hundred fifty-two million, one hundred ninety thousand, five hundred eighty-seven".

Divisors: 1 3 7 21 49 147 19211 57633 134477 403431 941339 2824017 369062521 1107187563 2583437647 7750312941 18084063529 54252190587