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25312313441 = 236718318971
BaseRepresentation
bin10111100100101110…
…110100000001100001
32102100001120202022102
4113210232310001201
5403314423012231
615343414420145
71554156054122
oct274456640141
972301522272
1025312313441
11a80a160808
124aa5061655
132505155b7c
141321a44049
159d2314acb
hex5e4bb4061

25312313441 has 16 divisors (see below), whose sum is σ = 26824700928. Its totient is φ = 23834725200.

The previous prime is 25312313371. The next prime is 25312313491. The reversal of 25312313441 is 14431321352.

It is not a de Polignac number, because 25312313441 - 214 = 25312297057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25312313491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2817086 + ... + 2826056.

It is an arithmetic number, because the mean of its divisors is an integer number (1676543808).

Almost surely, 225312313441 is an apocalyptic number.

It is an amenable number.

25312313441 is a deficient number, since it is larger than the sum of its proper divisors (1512387487).

25312313441 is a wasteful number, since it uses less digits than its factorization.

25312313441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10892.

The product of its digits is 8640, while the sum is 29.

Adding to 25312313441 its reverse (14431321352), we get a palindrome (39743634793).

The spelling of 25312313441 in words is "twenty-five billion, three hundred twelve million, three hundred thirteen thousand, four hundred forty-one".

Divisors: 1 23 67 1541 1831 8971 42113 122677 206333 601057 2821571 13824311 16425901 377795723 1100535367 25312313441