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53250045421 = 1773281311491
BaseRepresentation
bin110001100101111100…
…110011010111101101
312002110002100120210111
4301211330303113231
51333024002423141
640243541140021
73563404626556
oct614574632755
9162402316714
1053250045421
1120646298301
12a3a13ba611
1350381b1521
14281222532d
1515b9d7b381
hexc65f335ed

53250045421 has 32 divisors (see below), whose sum is σ = 57659786496. Its totient is φ = 48996864000.

The previous prime is 53250045391. The next prime is 53250045439. The reversal of 53250045421 is 12454005235.

It is a cyclic number.

It is not a de Polignac number, because 53250045421 - 25 = 53250045389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53250045521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108451986 + ... + 108452476.

It is an arithmetic number, because the mean of its divisors is an integer number (1801868328).

Almost surely, 253250045421 is an apocalyptic number.

It is an amenable number.

53250045421 is a deficient number, since it is larger than the sum of its proper divisors (4409741075).

53250045421 is a wasteful number, since it uses less digits than its factorization.

53250045421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173.

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 53250045421 in words is "fifty-three billion, two hundred fifty million, forty-five thousand, four hundred twenty-one".

Divisors: 1 17 73 281 311 491 1241 4777 5287 8347 20513 22703 35843 87391 137971 152701 348721 385951 609331 1485647 2345507 2595917 6379543 10071883 11147173 42908981 108452231 171222011 189501941 729452677 3132355613 53250045421