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25442003253 = 329463631613
BaseRepresentation
bin10111101100011101…
…100010100100110101
32102200002121200021210
4113230131202210311
5404101123101003
615404330232033
71560322313412
oct275435424465
972602550253
1025442003253
11a876390677
124b20585619
132525c933c4
141334d63109
159dd8d1503
hex5ec762935

25442003253 has 16 divisors (see below), whose sum is σ = 35168267520. Its totient is φ = 16341065664.

The previous prime is 25442003231. The next prime is 25442003287. The reversal of 25442003253 is 35230024452.

It is not a de Polignac number, because 25442003253 - 26 = 25442003189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25442003253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25442003203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275526 + ... + 356087.

It is an arithmetic number, because the mean of its divisors is an integer number (2198016720).

Almost surely, 225442003253 is an apocalyptic number.

It is an amenable number.

25442003253 is a deficient number, since it is larger than the sum of its proper divisors (9726264267).

25442003253 is a wasteful number, since it uses less digits than its factorization.

25442003253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632108.

The product of its (nonzero) digits is 28800, while the sum is 30.

The spelling of 25442003253 in words is "twenty-five billion, four hundred forty-two million, three thousand, two hundred fifty-three".

Divisors: 1 3 29 87 463 1389 13427 40281 631613 1894839 18316777 54950331 292436819 877310457 8480667751 25442003253