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25121504141 = 67991378353
BaseRepresentation
bin10111011001010110…
…111011101110001101
32101211202112122011022
4113121112323232031
5402422101113031
615312441003525
71546351155566
oct273126735615
971752478138
1025121504141
11a721485978
124a511835a5
1324a4768c66
14130457516d
159c06c397b
hex5d95bbb8d

25121504141 has 8 divisors (see below), whose sum is σ = 25522247424. Its totient is φ = 24721519680.

The previous prime is 25121504123. The next prime is 25121504147. The reversal of 25121504141 is 14140512152.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 25121504141 - 210 = 25121503117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25121504141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25121504147) 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, 122780 + ... + 255573.

It is an arithmetic number, because the mean of its divisors is an integer number (3190280928).

Almost surely, 225121504141 is an apocalyptic number.

It is an amenable number.

25121504141 is a deficient number, since it is larger than the sum of its proper divisors (400743283).

25121504141 is an equidigital number, since it uses as much as digits as its factorization.

25121504141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379411.

The product of its (nonzero) digits is 1600, while the sum is 26.

The spelling of 25121504141 in words is "twenty-five billion, one hundred twenty-one million, five hundred four thousand, one hundred forty-one".

Divisors: 1 67 991 66397 378353 25349651 374947823 25121504141