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55092157 = 67899239
BaseRepresentation
bin1101001000101…
…0001110111101
310211122222020021
43102022032331
5103100422112
65244452141
71236163351
oct322121675
9124588207
1055092157
112910960a
121654a051
13b54c113
147461461
154c83907
hex348a3bd

55092157 has 8 divisors (see below), whose sum is σ = 56548800. Its totient is φ = 53654304.

The previous prime is 55092137. The next prime is 55092161. The reversal of 55092157 is 75129055.

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

It is a cyclic number.

It is not a de Polignac number, because 55092157 - 219 = 54567869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55092127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1344 + ... + 10582.

It is an arithmetic number, because the mean of its divisors is an integer number (7068600).

Almost surely, 255092157 is an apocalyptic number.

It is an amenable number.

55092157 is a deficient number, since it is larger than the sum of its proper divisors (1456643).

55092157 is an equidigital number, since it uses as much as digits as its factorization.

55092157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9395.

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 55092157 is about 7422.4091102552. The cubic root of 55092157 is about 380.5075328189.

The spelling of 55092157 in words is "fifty-five million, ninety-two thousand, one hundred fifty-seven".

Divisors: 1 67 89 5963 9239 619013 822271 55092157