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250513025 = 5271431503
BaseRepresentation
bin11101110111010…
…00011010000001
3122110101101021012
432323220122001
51003112404100
640505210305
76131216450
oct1673503201
9573341235
10250513025
11119454164
126ba90995
133cb92079
14253b0b97
1516ed6135
hexeee8681

250513025 has 12 divisors (see below), whose sum is σ = 355012992. Its totient is φ = 171780240.

The previous prime is 250513009. The next prime is 250513057. The reversal of 250513025 is 520315052.

250513025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 250513025 - 24 = 250513009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 715577 + ... + 715926.

It is an arithmetic number, because the mean of its divisors is an integer number (29584416).

Almost surely, 2250513025 is an apocalyptic number.

250513025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

250513025 is a deficient number, since it is larger than the sum of its proper divisors (104499967).

250513025 is a wasteful number, since it uses less digits than its factorization.

250513025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431520 (or 1431515 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 250513025 is about 15827.6032613912. The cubic root of 250513025 is about 630.3911445212.

Adding to 250513025 its reverse (520315052), we get a palindrome (770828077).

The spelling of 250513025 in words is "two hundred fifty million, five hundred thirteen thousand, twenty-five".

Divisors: 1 5 7 25 35 175 1431503 7157515 10020521 35787575 50102605 250513025