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55122001455 = 3516722004791
BaseRepresentation
bin110011010101100001…
…101111111000101111
312021021112202210201110
4303111201233320233
51400342213021310
641153411443103
73660655165413
oct632541577057
9167245683643
1055122001455
1121416a29604
12a8242b6493
135275c76511
14294caacd43
151679399d20
hexcd586fe2f

55122001455 has 16 divisors (see below), whose sum is σ = 88723321344. Its totient is φ = 29222361120.

The previous prime is 55122001421. The next prime is 55122001463. The reversal of 55122001455 is 55410022155.

It is not a de Polignac number, because 55122001455 - 211 = 55121999407 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10999891 + ... + 11004900.

It is an arithmetic number, because the mean of its divisors is an integer number (5545207584).

Almost surely, 255122001455 is an apocalyptic number.

55122001455 is a deficient number, since it is larger than the sum of its proper divisors (33601319889).

55122001455 is a wasteful number, since it uses less digits than its factorization.

55122001455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22004966.

The product of its (nonzero) digits is 10000, while the sum is 30.

The spelling of 55122001455 in words is "fifty-five billion, one hundred twenty-two million, one thousand, four hundred fifty-five".

Divisors: 1 3 5 15 167 501 835 2505 22004791 66014373 110023955 330071865 3674800097 11024400291 18374000485 55122001455