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52540505 = 531419809
BaseRepresentation
bin1100100001101…
…1010001011001
310122212100000122
43020123101121
5101422244010
65114043025
71205405213
oct310332131
9118770018
1052540505
1127726506
1215719475
13ab67874
146d995b3
15492c855
hex321b459

52540505 has 16 divisors (see below), whose sum is σ = 65318400. Its totient is φ = 40529280.

The previous prime is 52540483. The next prime is 52540511. The reversal of 52540505 is 50504525.

It is not a de Polignac number, because 52540505 - 218 = 52278361 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64541 + ... + 65349.

It is an arithmetic number, because the mean of its divisors is an integer number (4082400).

Almost surely, 252540505 is an apocalyptic number.

It is an amenable number.

52540505 is a deficient number, since it is larger than the sum of its proper divisors (12777895).

52540505 is a wasteful number, since it uses less digits than its factorization.

52540505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264.

The product of its (nonzero) digits is 5000, while the sum is 26.

The square root of 52540505 is about 7248.4829447271. The cubic root of 52540505 is about 374.5398919955.

The spelling of 52540505 in words is "fifty-two million, five hundred forty thousand, five hundred five".

Divisors: 1 5 31 155 419 809 2095 4045 12989 25079 64945 125395 338971 1694855 10508101 52540505