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55125367445 = 5102120815189
BaseRepresentation
bin110011010101101110…
…100101101010010101
312021021210002210222202
4303111232211222111
51400344043224240
641154011534245
73661025614661
oct632556455225
9167253083882
1055125367445
1121418918515
12a82545a385
135276884625
14294d3078a1
151679812315
hexcd5ba5a95

55125367445 has 16 divisors (see below), whose sum is σ = 66259816560. Its totient is φ = 44027443200.

The previous prime is 55125367433. The next prime is 55125367471. The reversal of 55125367445 is 54476352155.

It can be written as a sum of positive squares in 8 ways, for example, as 222785476 + 54902581969 = 14926^2 + 234313^2 .

It is not a de Polignac number, because 55125367445 - 228 = 54856931989 is a prime.

It is a super-2 number, since 2×551253674452 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55125367445.

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, 10620911 + ... + 10626099.

It is an arithmetic number, because the mean of its divisors is an integer number (4141238535).

Almost surely, 255125367445 is an apocalyptic number.

It is an amenable number.

55125367445 is a deficient number, since it is larger than the sum of its proper divisors (11134449115).

55125367445 is a wasteful number, since it uses less digits than its factorization.

55125367445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8296.

The product of its digits is 2520000, while the sum is 47.

The spelling of 55125367445 in words is "fifty-five billion, one hundred twenty-five million, three hundred sixty-seven thousand, four hundred forty-five".

Divisors: 1 5 1021 2081 5105 5189 10405 25945 2124701 5297969 10623505 10798309 26489845 53991545 11025073489 55125367445