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25378944053 = 53727658663
BaseRepresentation
bin10111101000101100…
…111111010000110101
32102111200221221022212
4113220230333100311
5403434002202203
615354154503205
71555625315351
oct275054772065
972450857285
1025378944053
11a843830331
124b03434b05
132515bb4b78
14132a82a461
159d80c71d8
hex5e8b3f435

25378944053 has 8 divisors (see below), whose sum is σ = 25893399168. Its totient is φ = 24865807824.

The previous prime is 25378944047. The next prime is 25378944083. The reversal of 25378944053 is 35044987352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25378944053 - 214 = 25378927669 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25378943992 and 25378944010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25378944083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290801 + ... + 367862.

It is an arithmetic number, because the mean of its divisors is an integer number (3236674896).

Almost surely, 225378944053 is an apocalyptic number.

It is an amenable number.

25378944053 is a deficient number, since it is larger than the sum of its proper divisors (514455115).

25378944053 is an equidigital number, since it uses as much as digits as its factorization.

25378944053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659443.

The product of its (nonzero) digits is 3628800, while the sum is 50.

The spelling of 25378944053 in words is "twenty-five billion, three hundred seventy-eight million, nine hundred forty-four thousand, fifty-three".

Divisors: 1 53 727 38531 658663 34909139 478848001 25378944053