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54555632957 = 719246146831
BaseRepresentation
bin110010110011110001…
…001110010100111101
312012211002001022012102
4302303301032110331
51343212220223312
641021300314445
73640640141330
oct626361162475
9165732038172
1054555632957
1121156261571
12a6a66a2a25
1351b5824827
1428d779c617
1516447c1ec2
hexcb3c4e53d

54555632957 has 24 divisors (see below), whose sum is σ = 65947698432. Its totient is φ = 44203773600.

The previous prime is 54555632939. The next prime is 54555632981. The reversal of 54555632957 is 75923655545.

It is a happy number.

It is not a de Polignac number, because 54555632957 - 26 = 54555632893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54555632357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1141532 + ... + 1188362.

It is an arithmetic number, because the mean of its divisors is an integer number (2747820768).

Almost surely, 254555632957 is an apocalyptic number.

It is an amenable number.

54555632957 is a deficient number, since it is larger than the sum of its proper divisors (11392065475).

54555632957 is a wasteful number, since it uses less digits than its factorization.

54555632957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47337 (or 47318 counting only the distinct ones).

The product of its digits is 28350000, while the sum is 56.

The spelling of 54555632957 in words is "fifty-four billion, five hundred fifty-five million, six hundred thirty-two thousand, nine hundred fifty-seven".

Divisors: 1 7 19 133 361 461 2527 3227 8759 46831 61313 166421 327817 889789 1164947 6228523 16905991 21589091 118341937 151123637 410192729 2871349103 7793661851 54555632957