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52540555 = 537284003
BaseRepresentation
bin1100100001101…
…1010010001011
310122212100002111
43020123102023
5101422244210
65114043151
71205405314
oct310332213
9118770074
1052540555
1127726551
12157194b7
13ab678b2
146d9960b
15492c88a
hex321b48b

52540555 has 8 divisors (see below), whose sum is σ = 64752912. Its totient is φ = 40896288.

The previous prime is 52540519. The next prime is 52540561. The reversal of 52540555 is 55504525.

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

It is a cyclic number.

It is not a de Polignac number, because 52540555 - 215 = 52507787 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141817 + ... + 142186.

It is an arithmetic number, because the mean of its divisors is an integer number (8094114).

Almost surely, 252540555 is an apocalyptic number.

52540555 is a deficient number, since it is larger than the sum of its proper divisors (12212357).

52540555 is a wasteful number, since it uses less digits than its factorization.

52540555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284045.

The product of its (nonzero) digits is 25000, while the sum is 31.

The square root of 52540555 is about 7248.4863937239. The cubic root of 52540555 is about 374.5400108054.

The spelling of 52540555 in words is "fifty-two million, five hundred forty thousand, five hundred fifty-five".

Divisors: 1 5 37 185 284003 1420015 10508111 52540555