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25275000275 = 527268353831
BaseRepresentation
bin10111100010100000…
…011110010111010011
32102020110101001021022
4113202200132113103
5403230400002100
615340002550055
71553223646310
oct274240362723
972213331238
1025275000275
11a7a0095888
124a9466832b
1324ca4c0285
14131aacdd07
159cdde3e85
hex5e281e5d3

25275000275 has 24 divisors (see below), whose sum is σ = 35832301824. Its totient is φ = 17324647200.

The previous prime is 25275000253. The next prime is 25275000277. The reversal of 25275000275 is 57200057252.

It is not a de Polignac number, because 25275000275 - 222 = 25270805971 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25275000277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 442610 + ... + 496440.

It is an arithmetic number, because the mean of its divisors is an integer number (1493012576).

Almost surely, 225275000275 is an apocalyptic number.

25275000275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25275000275 is a deficient number, since it is larger than the sum of its proper divisors (10557301549).

25275000275 is a wasteful number, since it uses less digits than its factorization.

25275000275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56531 (or 56526 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 35.

The spelling of 25275000275 in words is "twenty-five billion, two hundred seventy-five million, two hundred seventy-five", and thus it is an aban number.

Divisors: 1 5 7 25 35 175 2683 13415 18781 53831 67075 93905 269155 376817 469525 1345775 1884085 9420425 144428573 722142865 1011000011 3610714325 5055000055 25275000275