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50161025 = 522006441
BaseRepresentation
bin1011111101011…
…0010110000001
310111101102222202
42333112112001
5100320123100
64551042545
71146235025
oct277262601
9114342882
1050161025
11263507a2
1214970455
13a5137a5
14693a385
15460c7d5
hex2fd6581

50161025 has 6 divisors (see below), whose sum is σ = 62199702. Its totient is φ = 40128800.

The previous prime is 50161021. The next prime is 50161031. The reversal of 50161025 is 52016105.

It can be written as a sum of positive squares in 3 ways, for example, as 2163841 + 47997184 = 1471^2 + 6928^2 .

It is not a de Polignac number, because 50161025 - 22 = 50161021 is a prime.

It is a super-2 number, since 2×501610252 = 5032256858101250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 50160988 and 50161006.

It is not an unprimeable number, because it can be changed into a prime (50161021) 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, 1003196 + ... + 1003245.

It is an arithmetic number, because the mean of its divisors is an integer number (10366617).

Almost surely, 250161025 is an apocalyptic number.

It is an amenable number.

50161025 is a deficient number, since it is larger than the sum of its proper divisors (12038677).

50161025 is a wasteful number, since it uses less digits than its factorization.

50161025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006451 (or 2006446 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 50161025 is about 7082.4448462378. Note that the first 3 decimals coincide. The cubic root of 50161025 is about 368.7982068548.

The spelling of 50161025 in words is "fifty million, one hundred sixty-one thousand, twenty-five".

Divisors: 1 5 25 2006441 10032205 50161025