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50031505525 = 5216971179293
BaseRepresentation
bin101110100110000111…
…000011000001110101
311210010210002211002011
4232212013003001311
51304431031134100
634552324444221
73420553531411
oct564607030165
9153123084064
1050031505525
111a244531681
129843549671
134944451051
1425c89b1d41
15147c519bba
hexba61c3075

50031505525 has 12 divisors (see below), whose sum is σ = 62075677572. Its totient is φ = 40001584640.

The previous prime is 50031505519. The next prime is 50031505567. The reversal of 50031505525 is 52550513005.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 6180632689 + 43850872836 = 78617^2 + 209406^2 .

It is not a de Polignac number, because 50031505525 - 27 = 50031505397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 547222 + ... + 632071.

It is an arithmetic number, because the mean of its divisors is an integer number (5172973131).

Almost surely, 250031505525 is an apocalyptic number.

It is an amenable number.

50031505525 is a deficient number, since it is larger than the sum of its proper divisors (12044172047).

50031505525 is a wasteful number, since it uses less digits than its factorization.

50031505525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181000 (or 1180995 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 31.

The spelling of 50031505525 in words is "fifty billion, thirty-one million, five hundred five thousand, five hundred twenty-five".

Divisors: 1 5 25 1697 8485 42425 1179293 5896465 29482325 2001260221 10006301105 50031505525