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55153230445 = 541392665051
BaseRepresentation
bin110011010111011000…
…111000001001101101
312021100201112101211201
4303113120320021231
51400423211333240
641200445045501
73661514503135
oct632730701155
9167321471751
1055153230445
1121432619395
12a832856891
13527c58ba01
142952cbbac5
15167beb7d9a
hexcd763826d

55153230445 has 8 divisors (see below), whose sum is σ = 66199891680. Its totient is φ = 44111907600.

The previous prime is 55153230439. The next prime is 55153230449. The reversal of 55153230445 is 54403235155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55153230445 - 27 = 55153230317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55153230449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1311831 + ... + 1353220.

It is an arithmetic number, because the mean of its divisors is an integer number (8274986460).

Almost surely, 255153230445 is an apocalyptic number.

It is an amenable number.

55153230445 is a deficient number, since it is larger than the sum of its proper divisors (11046661235).

55153230445 is a wasteful number, since it uses less digits than its factorization.

55153230445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2669195.

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 55153230445 in words is "fifty-five billion, one hundred fifty-three million, two hundred thirty thousand, four hundred forty-five".

Divisors: 1 5 4139 20695 2665051 13325255 11030646089 55153230445