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52057477 = 431210639
BaseRepresentation
bin1100011010010…
…1010110000101
310121221210102201
43012211112011
5101311314402
65055434501
71201324033
oct306452605
9117853381
1052057477
112742660a
1215525a31
13aa28a54
146cb1553
154884687
hex31a5585

52057477 has 4 divisors (see below), whose sum is σ = 53268160. Its totient is φ = 50846796.

The previous prime is 52057469. The next prime is 52057531. The reversal of 52057477 is 77475025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52057477 - 23 = 52057469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52057877) 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, 605277 + ... + 605362.

It is an arithmetic number, because the mean of its divisors is an integer number (13317040).

Almost surely, 252057477 is an apocalyptic number.

It is an amenable number.

52057477 is a deficient number, since it is larger than the sum of its proper divisors (1210683).

52057477 is a wasteful number, since it uses less digits than its factorization.

52057477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210682.

The product of its (nonzero) digits is 68600, while the sum is 37.

The square root of 52057477 is about 7215.0867631651. The cubic root of 52057477 is about 373.3885865465.

The spelling of 52057477 in words is "fifty-two million, fifty-seven thousand, four hundred seventy-seven".

Divisors: 1 43 1210639 52057477