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55697758694 = 275613683227
BaseRepresentation
bin110011110111110110…
…000101100111100110
312022202200011022011122
4303313312011213212
51403032111234234
641330500133542
74011146065064
oct636766054746
9168680138148
1055697758694
1121691a29536
12a9650972b2
135338334786
1429a5345034
1516aebc992e
hexcf7d859e6

55697758694 has 8 divisors (see below), whose sum is σ = 83557710408. Its totient is φ = 27845188560.

The previous prime is 55697758691. The next prime is 55697758723. The reversal of 55697758694 is 49685779655.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55697758691) 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, 1826492 + ... + 1856735.

It is an arithmetic number, because the mean of its divisors is an integer number (10444713801).

Almost surely, 255697758694 is an apocalyptic number.

55697758694 is a deficient number, since it is larger than the sum of its proper divisors (27859951714).

55697758694 is a wasteful number, since it uses less digits than its factorization.

55697758694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690790.

The product of its digits is 571536000, while the sum is 71.

The spelling of 55697758694 in words is "fifty-five billion, six hundred ninety-seven million, seven hundred fifty-eight thousand, six hundred ninety-four".

Divisors: 1 2 7561 15122 3683227 7366454 27848879347 55697758694