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55953063937 = 388114417177
BaseRepresentation
bin110100000111000100…
…000000000000000001
312100102110120011010101
4310013010000000001
51404042441021222
641412100202401
74020366124201
oct640704000001
9170373504111
1055953063937
1121803056101
12aa16699401
1353791b3b74
1429cb202401
1516c730a927
hexd07100001

55953063937 has 4 divisors (see below), whose sum is σ = 55967484996. Its totient is φ = 55938642880.

The previous prime is 55953063889. The next prime is 55953063949. The reversal of 55953063937 is 73936035955.

It is a Cunningham number, because it is equal to 2365442+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35262830656 + 20690233281 = 187784^2 + 143841^2 .

It is a cyclic number.

It is not a de Polignac number, because 55953063937 - 211 = 55953061889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55953063997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7204708 + ... + 7212469.

It is an arithmetic number, because the mean of its divisors is an integer number (13991871249).

It is a Proth number, since it is equal to 53361 ⋅ 220 + 1 and 53361 < 220.

Almost surely, 255953063937 is an apocalyptic number.

It is an amenable number.

55953063937 is a deficient number, since it is larger than the sum of its proper divisors (14421059).

55953063937 is a wasteful number, since it uses less digits than its factorization.

55953063937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14421058.

The product of its (nonzero) digits is 11481750, while the sum is 55.

The spelling of 55953063937 in words is "fifty-five billion, nine hundred fifty-three million, sixty-three thousand, nine hundred thirty-seven".

Divisors: 1 3881 14417177 55953063937