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55350001867 = 192913157993
BaseRepresentation
bin110011100011000111…
…100000000011001011
312021212102210102111011
4303203013200003023
51401324100024432
641232154344351
73666424152556
oct634307400313
9167772712434
1055350001867
11215236a66a6
12a88872b0b7
1352b12855c4
14297109d69d
15168e3d5847
hexce31e00cb

55350001867 has 4 divisors (see below), whose sum is σ = 58263159880. Its totient is φ = 52436843856.

The previous prime is 55350001813. The next prime is 55350001957. The reversal of 55350001867 is 76810005355.

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

It is a cyclic number.

It is not a de Polignac number, because 55350001867 - 227 = 55215784139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55350001807) 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, 1456578978 + ... + 1456579015.

It is an arithmetic number, because the mean of its divisors is an integer number (14565789970).

Almost surely, 255350001867 is an apocalyptic number.

55350001867 is a deficient number, since it is larger than the sum of its proper divisors (2913158013).

55350001867 is a wasteful number, since it uses less digits than its factorization.

55350001867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2913158012.

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 55350001867 in words is "fifty-five billion, three hundred fifty million, one thousand, eight hundred sixty-seven".

Divisors: 1 19 2913157993 55350001867