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52875557 = 721079093
BaseRepresentation
bin1100100110110…
…1000100100101
310200111100121222
43021231010211
5102014004212
65125150125
71211302100
oct311550445
9120440558
1052875557
1127935209
121585b345
13ac54217
147045737
154996c72
hex326d125

52875557 has 6 divisors (see below), whose sum is σ = 61508358. Its totient is φ = 45321864.

The previous prime is 52875539. The next prime is 52875577. The reversal of 52875557 is 75557825.

It can be written as a sum of positive squares in only one way, i.e., 26977636 + 25897921 = 5194^2 + 5089^2 .

It is not a de Polignac number, because 52875557 - 214 = 52859173 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 (52875577) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 539498 + ... + 539595.

It is an arithmetic number, because the mean of its divisors is an integer number (10251393).

Almost surely, 252875557 is an apocalyptic number.

It is an amenable number.

52875557 is a deficient number, since it is larger than the sum of its proper divisors (8632801).

52875557 is a wasteful number, since it uses less digits than its factorization.

52875557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079107 (or 1079100 counting only the distinct ones).

The product of its digits is 490000, while the sum is 44.

The square root of 52875557 is about 7271.5580861326. The cubic root of 52875557 is about 375.3343554249.

The spelling of 52875557 in words is "fifty-two million, eight hundred seventy-five thousand, five hundred fifty-seven".

Divisors: 1 7 49 1079093 7553651 52875557