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25430168375 = 531072119011
BaseRepresentation
bin10111101011110000…
…011001001100110111
32102122021100101212222
4113223300121030313
5404040110342000
615403224432555
71560116602403
oct275360311467
972567311788
1025430168375
11a86a737987
124b1861875b
1325236ab611
141333562103
159dc844a85
hex5ebc19337

25430168375 has 32 divisors (see below), whose sum is σ = 32188845312. Its totient is φ = 20056260000.

The previous prime is 25430168371. The next prime is 25430168419. The reversal of 25430168375 is 57386103452.

It is not a de Polignac number, because 25430168375 - 22 = 25430168371 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25430168371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2817620 + ... + 2826630.

It is an arithmetic number, because the mean of its divisors is an integer number (1005901416).

Almost surely, 225430168375 is an apocalyptic number.

25430168375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25430168375 is a deficient number, since it is larger than the sum of its proper divisors (6758676937).

25430168375 is a wasteful number, since it uses less digits than its factorization.

25430168375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9344 (or 9334 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 25430168375 in words is "twenty-five billion, four hundred thirty million, one hundred sixty-eight thousand, three hundred seventy-five".

Divisors: 1 5 25 107 125 211 535 1055 2675 5275 9011 13375 22577 26375 45055 112885 225275 564425 964177 1126375 1901321 2822125 4820885 9506605 24104425 47533025 120522125 203441347 237665125 1017206735 5086033675 25430168375