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51025067 = 103495389
BaseRepresentation
bin1100001010100…
…1010010101011
310120000100020022
43002221102223
5101030300232
65021351055
71156464062
oct302512253
9116010208
1051025067
1126890985
121510848b
13a756b62
146ac31d9
15472d812
hex30a94ab

51025067 has 4 divisors (see below), whose sum is σ = 51520560. Its totient is φ = 50529576.

The previous prime is 51025057. The next prime is 51025081. The reversal of 51025067 is 76052015.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51025067 - 26 = 51025003 is a prime.

It is a super-3 number, since 3×510250673 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51025057) 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, 247592 + ... + 247797.

It is an arithmetic number, because the mean of its divisors is an integer number (12880140).

Almost surely, 251025067 is an apocalyptic number.

51025067 is a deficient number, since it is larger than the sum of its proper divisors (495493).

51025067 is a wasteful number, since it uses less digits than its factorization.

51025067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495492.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 51025067 is about 7143.1832539842. The cubic root of 51025067 is about 370.9037246280.

The spelling of 51025067 in words is "fifty-one million, twenty-five thousand, sixty-seven".

Divisors: 1 103 495389 51025067