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11507725 = 521727077
BaseRepresentation
bin101011111001…
…100000001101
3210122122122001
4223321200031
510421221400
61050352301
7166546135
oct53714015
923578561
1011507725
11654aa19
123a2b691
1324cbc08
141757ac5
151024a6a
hexaf980d

11507725 has 12 divisors (see below), whose sum is σ = 15109524. Its totient is φ = 8664320.

The previous prime is 11507723. The next prime is 11507747. The reversal of 11507725 is 52770511.

11507725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 412164 + 11095561 = 642^2 + 3331^2 .

It is not a de Polignac number, because 11507725 - 21 = 11507723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11507693 and 11507702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11507723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13114 + ... + 13963.

It is an arithmetic number, because the mean of its divisors is an integer number (1259127).

Almost surely, 211507725 is an apocalyptic number.

It is an amenable number.

11507725 is a deficient number, since it is larger than the sum of its proper divisors (3601799).

11507725 is a wasteful number, since it uses less digits than its factorization.

11507725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27104 (or 27099 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 28.

The square root of 11507725 is about 3392.3037894623. The cubic root of 11507725 is about 225.7684016367.

The spelling of 11507725 in words is "eleven million, five hundred seven thousand, seven hundred twenty-five".

Divisors: 1 5 17 25 85 425 27077 135385 460309 676925 2301545 11507725