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53086905 = 3254432663
BaseRepresentation
bin1100101010000…
…0101010111001
310200220002112200
43022200222321
5102042240110
65133500413
71213142214
oct312405271
9120802480
1053086905
1127a69a83
1215941709
13acc9491
14709c77b
1549d96c0
hex32a0ab9

53086905 has 24 divisors (see below), whose sum is σ = 92259648. Its totient is φ = 28238496.

The previous prime is 53086877. The next prime is 53086927. The reversal of 53086905 is 50968035.

It is not a de Polignac number, because 53086905 - 27 = 53086777 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53086905.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18604 + ... + 21266.

It is an arithmetic number, because the mean of its divisors is an integer number (3844152).

Almost surely, 253086905 is an apocalyptic number.

It is an amenable number.

53086905 is a deficient number, since it is larger than the sum of its proper divisors (39172743).

53086905 is a wasteful number, since it uses less digits than its factorization.

53086905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3117 (or 3114 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 53086905 is about 7286.0761044612. The cubic root of 53086905 is about 375.8337714930.

The spelling of 53086905 in words is "fifty-three million, eighty-six thousand, nine hundred five".

Divisors: 1 3 5 9 15 45 443 1329 2215 2663 3987 6645 7989 13315 19935 23967 39945 119835 1179709 3539127 5898545 10617381 17695635 53086905