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54663541 = 371477393
BaseRepresentation
bin1101000010000…
…1100101110101
310210212012021121
43100201211311
5102443213131
65231343541
71232426632
oct320414565
9123765247
1054663541
1128946589
1216381bb1
13b42bcba
14738d189
154beb911
hex3421975

54663541 has 4 divisors (see below), whose sum is σ = 56140972. Its totient is φ = 53186112.

The previous prime is 54663529. The next prime is 54663563. The reversal of 54663541 is 14536645.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14536645 = 52907329.

It can be written as a sum of positive squares in 2 ways, for example, as 47210641 + 7452900 = 6871^2 + 2730^2 .

It is a cyclic number.

It is not a de Polignac number, because 54663541 - 29 = 54663029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54663497 and 54663506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54663241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 738660 + ... + 738733.

It is an arithmetic number, because the mean of its divisors is an integer number (14035243).

Almost surely, 254663541 is an apocalyptic number.

It is an amenable number.

54663541 is a deficient number, since it is larger than the sum of its proper divisors (1477431).

54663541 is a wasteful number, since it uses less digits than its factorization.

54663541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477430.

The product of its digits is 43200, while the sum is 34.

The square root of 54663541 is about 7393.4796273473. The cubic root of 54663541 is about 379.5181820464.

The spelling of 54663541 in words is "fifty-four million, six hundred sixty-three thousand, five hundred forty-one".

Divisors: 1 37 1477393 54663541